Last data update: Mar 10, 2025. (Total: 48852 publications since 2009)
Records 1-30 (of 56 Records) |
Query Trace: Ti A[original query] |
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Health associations of positive childhood experiences: A scoping review of the literature
Hero J , Gallant L , Burstein D , Newberry S , Qureshi N , Feistel K , Anderson KN , Hannan K , Sege R . Int J Environ Res Public Health 2025 22 (1) We report the results of a scoping review of the literature investigating associations between positive childhood experiences (PCEs) and selected health outcomes to identify which have the highest level of research activity based on the indexed academic literature. Yielded articles underwent title/abstract (Ti/Ab) and full text screening utilizing inclusion/exclusion criteria. The review was guided by PCE categories from the Healthy Outcomes from Positive Experiences framework: relationships, environment, engagement, and emotional growth. The initial search yielded 8,919 unduplicated articles, 759 were retained following Ti/Ab review and 220 articles were retained after full text screening describing 795 tested associations across 23 PCE types in ten outcome categories. The outcomes most commonly examined were substance misuse (305 tested associations across 93 studies), suicidal behaviors (195 tested associations across 56 studies), and depression (112 tested associations across 55 studies). Physical health outcomes were less common (14 tested associations across six studies). Of the PCE exposures, relationships represented 415 of tested associations, 236 with environment, and 114 with social engagement. A significant body of research demonstrated associations between PCEs and health outcomes. While further research is needed, available research suggests that public health efforts to promote PCEs may have impact across multiple domains. |
Seroepidemiology of trachoma in a low prevalence region receiving annual mass azithromycin distribution in Maradi, Niger
Amza A , Kadri B , Nassirou B , Arzika A , Gebreegziabher E , Hu H , Zhong L , Chen C , Yu D , Abraham T , Liu Y , Wickens K , Doan T , Martin D , Arnold BF , Lietman TM , Oldenburg CE . PLoS Negl Trop Dis 2024 18 (12) e0012727 BACKGROUND: Trachoma programs use the indicator trachomatous inflammation--follicular (TF) to monitor indication for and response to treatment for trachoma at the district level. Alternative indicators, including serologic markers, are increasingly being evaluated for trachoma surveillance. We evaluated seroprevalence of IgG antibodies to the Pgp3 antigen in two districts in Maradi, Niger thought to have low TF prevalence. METHODS: Data were collected as part of the baseline assessment of the Azithromycin Reduction to Reach Elimination of Trachoma (ARRET) trial in September 2021. A random sample of 80 communities was selected from Mayahi and Guidan Roumdji districts, both of which had TF prevalence <20% at their most recent trachoma impact survey in 2018. A random sample of 50 children per community was sampled. We collected field grades, conjunctival swabs for processing PCR for ocular Chlamydia trachomatis, and dried blood spots for serologic assessment. RESULTS: Of 3,994 children sampled in 80 communities, 49% were female and median age was 4 years. Overall TF prevalence was 4.6% (95% CI 3.5 to 5.8%) and trachomatous inflammation-intense (TI) prevalence was 0.6% (95% 0.3 to 0.9%). The prevalence of ocular chlamydia was 0.03% (95% CI 0.08%). Seroprevalence for Pgp3 antibodies was 6.3% (95% CI 5.5 to 7.1%) in 1-9-year-olds and 3.7% (95% CI 2.9 to 4.4%) in 1-5-year-olds. TF and Pgp3 seroprevalence were better correlated in 1-5-year-olds (correlation coefficient 0.29) compared to 1-9-year-olds (correlation coefficient 0.09). CONCLUSIONS: In this low trachoma prevalence setting in Niger, seroprevalence of antibodies to Pgp3 were consistent with little ongoing transmission of C. trachomatis. |
Qualitative insights on barriers to receiving a second dose of measles-containing vaccine (MCV2), Oromia Region of Ethiopia
Solomon K , Aksnes BN , Woyessa AB , Geri C , Matanock AM , Shah MP , Samuel P , Tolera B , Kenate B , Bekele A , Deti T , Wako G , Shiferaw A , Tefera YL , Kokebie MA , Anbessie TB , Wubie HT , Wallace A , Sugerman CE , Kaba M . Vaccines (Basel) 2024 12 (7) Introduction: Ethiopia introduced a second dose of measles-containing vaccine (MCV2) in 2019 to provide further protection against measles and further progress toward elimination. However, the sub-optimal coverage of both MCV1 and MCV2 suggest challenges with vaccine uptake. In this qualitative study, we explored barriers to the uptake of MCV2 among caregivers, community leaders, and healthcare workers (HCWs). Method: A qualitative study was conducted between mid-April and mid-May 2021. We selected ten woredas (districts) in the Oromia Region, Ethiopia, stratified by settlement type (urban/rural), MCV1 coverage (high ≥ 80%; low < 80%), and history of measles outbreaks between June 2019 and June 2020. Experiences surrounding barriers to MCV2 uptake were discussed via focus group discussions (FGDs) and in-depth interviews (IDIs) with caregivers of children 12-23 and 24-36 months and key informant interviews (KIIs) with HCWs who administer vaccines and with community leaders. Participants were recruited via snowball sampling. Recorded data were transcribed, translated to English, and analyzed using ATLAS.ti v.09. Results: Forty FGDs and 60 IDIs with caregivers, 60 IDIs with HCWs, and 30 KIIs with community leaders were conducted. Barriers among caregivers included lack of knowledge and awareness about MCV2 and the vaccination schedule, competing priorities, long wait times at health facilities, vaccine unavailability, negative interactions with HCWs, and transportation challenges. At the community level, trusted leaders felt they lacked adequate knowledge about MCV2 to address caretakers' questions and community misconceptions. HCWs felt additional training on MCV2 would prepare them to better respond to caretakers' concerns. Health system barriers identified included the lack of human, material, and financial resources to deliver vaccines and provide immunization outreach services, which caretakers reported as their preferred way of accessing immunization. Conclusions: Barriers to MCV2 uptake occur at multiple levels of immunization service delivery. Strategies to address these barriers include tools to help caretakers track appointments, enhanced community engagement, HCW training to improve provider-client interactions and MCV2 knowledge, and efforts to manage HCW workload. |
Public health emergency preparedness: Qualitative analysis of after-action reports
Naik R , Maxwell N , Jones T , Dopson SA . Disaster Med Public Health Prep 2023 17 e523 After-Action Reports (AARs) are retrospective summaries that capture key information and lessons learned from emergency response exercises and real incidents. The AAR is a commonly used evaluation tool used by the Centers for Disease Control and Prevention as part of the Public Health Emergency Preparedness (PHEP) program. It is used as a metric of accountability and awardee performance. The objectives of this study were to qualitatively analyze AARs of public health preparedness programs and develop a coding scheme for standardizing future review and analysis of AARs. We evaluated 14 AARs (4 exercises and 10 real incidents) generated between 2012 and 2018. We applied inductive qualitative analyses using ATLAS.Ti software. While, previous exercises focused on medical countermeasure responses, real-world incidents focused on natural disasters and infectious disease outbreaks. Six overarching themes emerged: Communications, Coordination, Resource Distribution, Unified Planning, Surveillance, and Knowledge Sharing. A standardized analysis format is proposed for future use. |
Adapterama II: Universal amplicon sequencing on Illumina platforms (TaggiMatrix) (preprint)
Glenn TC , Pierson TW , Bayona-Vásquez NJ , Kieran TJ , Hoffberg SL , Thomas IV JC , Lefever DE , Finger JW , Gao B , Bian X , Louha S , Kolli RT , Bentley KE , Rushmore J , Wong K , Shaw TI , Rothrock MJ Jr , McKee AM , Guo TL , Mauricio R , Molina M , Cummings BS , Lash LH , Lu K , Gilbert GS , Hubbell SP , Faircloth BC . bioRxiv 2019 619544 Next-generation sequencing (NGS) of amplicons is used in a wide variety of contexts. Most NGS amplicon sequencing remains overly expensive and inflexible, with library preparation strategies relying upon the fusion of locus-specific primers to full-length adapter sequences with a single identifying sequence or ligating adapters onto PCR products. In Adapterama I, we presented universal stubs and primers to produce thousands of unique index combinations and a modifiable system for incorporating them into Illumina libraries. Here, we describe multiple ways to use the Adapterama system and other approaches for amplicon sequencing on Illumina instruments. In the variant we use most frequently for large-scale projects, we fuse partial adapter sequences (TruSeq or Nextera) onto the 5’ end of locus-specific PCR primers with variable-length tag sequences between the adapter and locus-specific sequences. These fusion primers can be used combinatorially to amplify samples within a 96-well plate (eight forward primers + 12 reverse primers yield 8 × 12 = 96 combinations), and the resulting amplicons can be pooled. The initial PCR products then serve as template for a second round of PCR with dual-indexed iTru or iNext primers (also used combinatorially) to make full-length libraries. The resulting quadruple-indexed amplicons have diversity at most base positions and can be pooled with any standard Illumina library for sequencing. The number of sequencing reads from the amplicon pools can be adjusted, facilitating deep sequencing when required or reducing sequencing costs per sample to an economically trivial amount when deep coverage is not needed. We demonstrate the utility and versatility of our approaches with results from six projects using different implementations of our protocols. Thus, we show that these methods facilitate amplicon library construction for Illumina instruments at reduced cost with increased flexibility. A simple web page to design fusion primers compatible with iTru primers is available at: http://baddna.uga.edu/tools-taggi.html. A fast and easy to use program to demultiplex amplicon pools with internal indexes is available at: https://github.com/lefeverde/Mr_Demuxy. |
Adapterama II: universal amplicon sequencing on Illumina platforms (TaggiMatrix).
Glenn TC , Pierson TW , Bayona-Vásquez NJ , Kieran TJ , Hoffberg SL , Thomas Iv JC , Lefever DE , Finger JW , Gao B , Bian X , Louha S , Kolli RT , Bentley KE , Rushmore J , Wong K , Shaw TI , Rothrock MJ Jr , McKee AM , Guo TL , Mauricio R , Molina M , Cummings BS , Lash LH , Lu K , Gilbert GS , Hubbell SP , Faircloth BC . PeerJ 2019 7 e7786 ![]() ![]() Next-generation sequencing (NGS) of amplicons is used in a wide variety of contexts. In many cases, NGS amplicon sequencing remains overly expensive and inflexible, with library preparation strategies relying upon the fusion of locus-specific primers to full-length adapter sequences with a single identifying sequence or ligating adapters onto PCR products. In Adapterama I, we presented universal stubs and primers to produce thousands of unique index combinations and a modifiable system for incorporating them into Illumina libraries. Here, we describe multiple ways to use the Adapterama system and other approaches for amplicon sequencing on Illumina instruments. In the variant we use most frequently for large-scale projects, we fuse partial adapter sequences (TruSeq or Nextera) onto the 5' end of locus-specific PCR primers with variable-length tag sequences between the adapter and locus-specific sequences. These fusion primers can be used combinatorially to amplify samples within a 96-well plate (8 forward primers + 12 reverse primers yield 8 × 12 = 96 combinations), and the resulting amplicons can be pooled. The initial PCR products then serve as template for a second round of PCR with dual-indexed iTru or iNext primers (also used combinatorially) to make full-length libraries. The resulting quadruple-indexed amplicons have diversity at most base positions and can be pooled with any standard Illumina library for sequencing. The number of sequencing reads from the amplicon pools can be adjusted, facilitating deep sequencing when required or reducing sequencing costs per sample to an economically trivial amount when deep coverage is not needed. We demonstrate the utility and versatility of our approaches with results from six projects using different implementations of our protocols. Thus, we show that these methods facilitate amplicon library construction for Illumina instruments at reduced cost with increased flexibility. A simple web page to design fusion primers compatible with iTru primers is available at: http://baddna.uga.edu/tools-taggi.html. A fast and easy to use program to demultiplex amplicon pools with internal indexes is available at: https://github.com/lefeverde/Mr_Demuxy. |
In silico toxicology protocols.
Myatt GJ , Ahlberg E , Akahori Y , Allen D , Amberg A , Anger LT , Aptula A , Auerbach S , Beilke L , Bellion P , Benigni R , Bercu J , Booth ED , Bower D , Brigo A , Burden N , Cammerer Z , Cronin MTD , Cross KP , Custer L , Dettwiler M , Dobo K , Ford KA , Fortin MC , Gad-McDonald SE , Gellatly N , Gervais V , Glover KP , Glowienke S , Van Gompel J , Gutsell S , Hardy B , Harvey JS , Hillegass J , Honma M , Hsieh JH , Hsu CW , Hughes K , Johnson C , Jolly R , Jones D , Kemper R , Kenyon MO , Kim MT , Kruhlak NL , Kulkarni SA , Kümmerer K , Leavitt P , Majer B , Masten S , Miller S , Moser J , Mumtaz M , Muster W , Neilson L , Oprea TI , Patlewicz G , Paulino A , Lo Piparo E , Powley M , Quigley DP , Reddy MV , Richarz AN , Ruiz P , Schilter B , Serafimova R , Simpson W , Stavitskaya L , Stidl R , Suarez-Rodriguez D , Szabo DT , Teasdale A , Trejo-Martin A , Valentin JP , Vuorinen A , Wall BA , Watts P , White AT , Wichard J , Witt KL , Woolley A , Woolley D , Zwickl C , Hasselgren C . Regul Toxicol Pharmacol 2018 96 1-17 ![]() The present publication surveys several applications of in silico (i.e., computational) toxicology approaches across different industries and institutions. It highlights the need to develop standardized protocols when conducting toxicity-related predictions. This contribution articulates the information needed for protocols to support in silico predictions for major toxicological endpoints of concern (e.g., genetic toxicity, carcinogenicity, acute toxicity, reproductive toxicity, developmental toxicity) across several industries and regulatory bodies. Such novel in silico toxicology (IST) protocols, when fully developed and implemented, will ensure in silico toxicological assessments are performed and evaluated in a consistent, reproducible, and well-documented manner across industries and regulatory bodies to support wider uptake and acceptance of the approaches. The development of IST protocols is an initiative developed through a collaboration among an international consortium to reflect the state-of-the-art in in silico toxicology for hazard identification and characterization. A general outline for describing the development of such protocols is included and it is based on in silico predictions and/or available experimental data for a defined series of relevant toxicological effects or mechanisms. The publication presents a novel approach for determining the reliability of in silico predictions alongside experimental data. In addition, we discuss how to determine the level of confidence in the assessment based on the relevance and reliability of the information. |
One health zoonotic disease prioritization and systems mapping: An integration of two One Health tools
Varela K , Goryoka G , Suwandono A , Mahero M , Valeri L , Pelican K , Salyer SJ . Zoonoses Public Health 2022 70 (2) 146-159 One Health is a collaborative approach that requires synergies between human, animal and environmental health sectors, other key sectors, and partners supporting these capacity-building efforts. Multiple One Health capacity-building tools are available that can be used independently or together. Two tools that have been used in sequence to inform each other include the US Centers for Disease Control and Prevention's One Health Zoonotic Disease Prioritization (OHZDP) Process and University of Minnesota/US Department of Agriculture's One Health Systems Mapping and Analysis Resource Toolkit™ (OH-SMART). In August 2017, a workshop was held in Islamabad, Pakistan, that integrated these two tools for the first time. In this integrated workshop, we used the OHZDP to develop a list of priority zoonotic diseases for Pakistan and OH-SMART™ to conduct a partner assessment and disease-specific gap analysis. Both tools were used to identify areas for One Health collaboration for the priority zoonotic diseases. Additionally, we trained 11 in-country facilitators representing the human and animal health sectors on both tools. This manuscript describes the integration of these two tools-using the Pakistan workshop as a process case study-to inform future efforts to implement One Health tools synergistically. Implementation of the technical and logistical aspects of the integrated workshop was detailed: (1) workshop preparation, (2) facilitator training, (3) workshop implementation and (4) workshop outcomes. Sixteen months after the workshop, we conducted an in-country facilitator survey to follow-up on the utility of both tools and the training for facilitators. We evaluated facilitator survey results using a qualitative analysis software Atlas.ti. Using the OHZDP Process and OH-SMART™ together achieved continuity between the two processes and provided a professional development opportunity for in-country facilitators. Based on the success of this integrated workshop, partners developing and implementing One Health tools should recognize the importance of collaboration to maximize outcomes. |
Evaluation of the collaborative integrated surveillance system (ViCo) in Guatemala: a qualitative study on lessons learned and future perspectives
Jaramillo J , Ning MF , Cadena L , Park M , Lo T , Zielinski-Gutierrez E , Espinosa-Bode A , Reyes M , Del Rosario Polo M , Henao O . BMC Public Health 2022 22 (1) 350 BACKGROUND: The collaborative integrated surveillance system known as Vigilancia Integrada Comunitaria (ViCo) was implemented in 2007 to better understand and characterize the burden of diarrheal, respiratory and febrile illnesses in Guatemala. METHODS: To evaluate the usefulness of ViCo and inform a redesign of the system and new surveillance activities in the Central American region, personnel from the United States Centers for Disease Control and Prevention (CDC) conducted thirty-nine in-depth interviews from June-December 2018 with key stakeholders responsible for the design and implementation of ViCo in Guatemala. A semi-structured questionnaire adapted from the Updated CDC Guidelines for Evaluating Public Health Surveillance Systems was used for data collection. We used a grounded theory approach to explore stakeholder perceptions of ViCo and generate recommendations for improvement. Primary qualitative findings were organized based on thematic areas using ATLAS.ti version 8 software. RESULTS: Emergent themes relevant to the usefulness of ViCo were organized across strengths, weaknesses, and recommendations pertaining to the: (1) Size and Complexity of ViCo, (2) Stakeholder Expectations About the Objectives of ViCo, (3) Data Management and Structure of the Information System, (4) Local Control of Data, (5) Integration of ViCo within the Ministry of Health, and, (6) Improvement of the Operational and Design Aspects of ViCo across System, Process, and Output levels. CONCLUSIONS: Stakeholders perceived ViCo to be useful. They recommended measures to improve system performance and quality, including simplifying the surveillance system, routine data analysis and feedback, and channeling efforts towards integrating surveillance data into the national health information system. To create a well-performing surveillance system and achieve the intended objective of surveillance for public health action, ongoing evaluation and assessment of surveillance activities are necessary. |
Monogenic diabetes in youth with presumed type 2 diabetes: Results from the Progress in Diabetes Genetics in Youth (ProDiGY) Collaboration
Todd JN , Kleinberger JW , Zhang H , Srinivasan S , Tollefsen SE , Levitsky LL , Levitt Katz LE , Tryggestad JB , Bacha F , Imperatore G , Lawrence JM , Pihoker C , Divers J , Flannick J , Dabelea D , Florez JC , Pollin TI . Diabetes Care 2021 44 (10) 2312-9 OBJECTIVE: Maturity-onset diabetes of the young (MODY) is frequently misdiagnosed as type 1 or type 2 diabetes. Correct diagnosis may result in a change in clinical treatment and impacts prediction of complications and familial risk. In this study, we aimed to assess the prevalence of MODY in multiethnic youth under age 20 years with a clinical diagnosis of type 2 diabetes. RESEARCH DESIGN AND METHODS: We evaluated whole-exome sequence data of youth with a clinical diagnosis of type 2 diabetes. We considered participants to have MODY if they carried a MODY gene variant classified as likely pathogenic (LP) or pathogenic (P) according to current guidelines. RESULTS: Of 3,333 participants, 93 (2.8%) carried an LP/P variant in HNF4A (16 participants), GCK (23), HNF1A (44), PDX1 (5), INS (4), and CEL (1). Compared with those with no LP/P variants, youth with MODY had a younger age at diagnosis (12.9 ± 2.5 vs. 13.6 ± 2.3 years, P = 0.002) and lower fasting C-peptide levels (3.0 ± 1.7 vs. 4.7 ± 3.5 ng/mL, P < 0.0001). Youth with MODY were less likely to have hypertension (6.9% vs. 19.5%, P = 0.007) and had higher HDL cholesterol (43.8 vs. 39.7 mg/dL, P = 0.006). CONCLUSIONS: By comprehensively sequencing the coding regions of all MODY genes, we identified MODY in 2.8% of youth with clinically diagnosed type 2 diabetes; importantly, in 89% (n = 83) the specific diagnosis would have changed clinical management. No clinical criterion reliably separated the two groups. New tools are needed to find ideal criteria for selection of individuals for genetic testing. |
Patient and pharmacist perspectives on pharmacist-prescribed contraception: a systematic review
Eckhaus LM , Ti AJ , Curtis KM , Stewart-Lynch AL , Whiteman MK . Contraception 2020 103 (2) 66-74 OBJECTIVE: Increasingly, states authorize pharmacists to prescribe hormonal contraception to patients without a prescription from another healthcare provider. The purpose of this review is to investigate pharmacist and patient perspectives on pharmacist-prescribed contraception in the United States. Study Design We searched Medline, Embase, PsycInfo, CINAHL, Scopus, and the Cochrane Library from inception through July 10, 2019. We included qualitative and mixed-methods studies, quantitative surveys, observational studies, and randomized trials in the United States. Risk of bias was assessed using tools for quantitative and qualitative studies. RESULTS: Fifteen studies met inclusion criteria, including studies on pharmacists and student pharmacists (n=9), patients (n=5), and both (n=1). Study samples ranged from local to national. Studies had moderate to high risk of bias, primarily due to low response rates and lack of validated instruments. Most pharmacists (57-96%) across four studies were interested in participating in pharmacist-prescribed contraception services. Among patients, 63-97% across three studies supported pharmacist-prescribed contraception, and 38-68% across four studies intended to participate in these services. At least half of pharmacists across four studies felt comfortable prescribing contraception, though pharmacists identified additional training needs. Pharmacists and patients identified several reasons for interest in pharmacist-prescribed contraception services, including increasing patient access, reducing unintended pregnancies, and offering professional development for pharmacists. They also identified barriers, including payment, time and resource constraints, liability, and patient health concerns. CONCLUSIONS: Most pharmacists and patients across 15 studies were interested in expanded access to contraception through pharmacist-prescribed contraception. Findings on facilitators and barriers may inform implementation efforts. Implications Pharmacist-prescribed contraception is a strategy to expand patient access to contraception. Reducing barriers to implementation could improve participation among pharmacists and patients. |
Balancing competing priorities: Quantity versus quality within a routine, voluntary medical male circumcision program operating at scale in Zimbabwe
Feldacker C , Murenje V , Makunike-Chikwinya B , Hove J , Munyaradzi T , Marongwe P , Balachandra S , Mandisarisa J , Holec M , Xaba S , Sidile-Chitimbire V , Tshimanga M , Barnhart S . PLoS One 2020 15 (10) e0240425 BACKGROUND: Since 2013, the ZAZIC consortium supported the Zimbabwe Ministry of Health and Child Care (MOHCC) to implement a high quality, integrated voluntary medical male circumcision (VMMC) program in 13 districts. With the aim of significantly lowering global HIV rates, prevention programs like VMMC make every effort to achieve ambitious targets at an increasingly reduced cost. This has the potential to threaten VMMC program quality. Two measures of program quality are follow-up and adverse event (AE) rates. To inform further VMMC program improvement, ZAZIC conducted a quality assurance (QA) activity to assess if pressure to do more with less influenced program quality. METHODS: Key informant interviews (KIIs) were conducted at 9 sites with 7 site-based VMMC program officers and 9 ZAZIC roving team members. Confidentiality was ensured to encourage candid conversation on adherence to VMMC standards, methods to increase productivity, challenges to target achievement, and suggestions for program modification. Interviews were recorded, transcribed and analyzed using Atlas.ti 6. RESULTS: VMMC teams work long hours in diverse community settings to reach ambitious targets. Rotating, large teams of trained VMMC providers ensures meeting demand. Service providers prioritize VMMC safety procedures and implement additional QA measures to prevent AEs among all clients, especially minors. However, KIs noted three areas where pressure for increased numbers of clients diminished adherence to VMMC safety standards. For pre- and post-operative counselling, MC teams may combine individual and group sessions to reach more people, potentially reducing client understanding of critical wound care instructions. Second, key infection control practices may be compromised (handwashing, scrubbing techniques, and preoperative client preparation) to speed MC procedures. Lastly, pressure for client numbers may reduce prioritization of patient follow-up, while client-perceived stigma may reduce care-seeking. Although AEs appear well managed, delays in AE identification and lack of consistent AE reporting compromise program quality. CONCLUSION: In pursuit of ambitious targets, healthcare workers may compromise quality of MC services. Although risk to patients may appear minimal, careful consideration of the realities and risks of ambitious target setting by donors, ministries, and implementing partners could help to ensure that client safety and program quality is consistently prioritized over productivity. |
Effectiveness and safety of extending intrauterine device duration: A systematic review
Ti AJ , Roe AH , Whitehouse KC , Smith RA , Gaffield ME , Curtis KM . Am J Obstet Gynecol 2020 223 (1) 24-35 e3 OBJECTIVE: To systematically review the literature to determine if extended use of intrauterine devices including the copper or levonorgestrel intrauterine device beyond approved durations is effective and safe for preventing pregnancy. DATA SOURCES: We searched PubMed, Embase, Cumulative Index to Nursing and Allied Health Literature, and Global Index Medicus from inception through June 2019. STUDY ELIGIBILITY CRITERIA: We considered primary studies of women using the T380A Copper or currently available levonorgestrel intrauterine devices past their approved duration (extended use). The primary outcome was pregnancy. Safety outcomes included adverse events and side effects that led to discontinuation. STUDY APPRAISAL AND SYNTHESIS METHODS: We abstracted study data into evidence tables and assessed study quality as related to the risk of bias, precision, and external validity. For each intrauterine device type, we calculated a pooled pregnancy rate during the first two years of extended use using the Poisson inverse variance method. RESULTS: Of 4,068 studies identified by our search, four good to poor quality studies of the 52 mg levonorgestrel intrauterine device (approved for five years) with a total of 2098 women starting extended use, and two good to fair quality studies of the T380A copper intrauterine device (approved for 10 years) with 245 women starting extended use met inclusion criteria. For the levonorgestrel intrauterine device, the pooled pregnancy rate was 0.02 per 100 person-years (95% confidence interval 0.00-0.45) in year six, 0.03 per 100 person-years (95% confidence interval 0.00-0.71) in year 7, and 0.02 per 100 person-years (95% confidence interval 0.00-0.29) in years six and seven combined. During this same time, annual rates of adverse events or discontinuation due to side effects ranged from 0-3.7 per 100 participants. For the copper intrauterine device, the pooled pregnancy rate for years 11 and 12 was 0.0 per 100 person-years (95% confidence interval 0.0-0.8), and annual rates of adverse events and discontinuation due to side effects during extended use ranged from 0-4.6 per 100 participants. CONCLUSION: The available evidence suggests that rates of pregnancy, adverse events, and discontinuation due to side effects during the first two years of extended use of the 52 mg levonorgestrel intrauterine device and the T380A copper intrauterine device are low and comparable to rates during approved duration of use. Data were limited in quantity and quality, and may not be generalizable to all intrauterine device users. |
Copper intrauterine device use and HIV acquisition in women: a systematic review
Hannaford PC , Ti A , Chipato T , Curtis KM . BMJ Sex Reprod Health 2020 46 (1) 17-25 OBJECTIVES: To review systematically copper intrauterine device (Cu-IUD) use and HIV acquisition in women. METHODS: We searched Pubmed, Embase and the Cochrane Library between database inception and 26 June 2019 for longitudinal studies comparing incident HIV infection among women using an unspecified IUD or Cu-IUD compared with non-hormonal or no contraceptive users, or hormonal contraceptive users. We extracted information from included studies, assessed study quality, and summarised study findings. RESULTS: From 2494 publications identified, seven met our inclusion criteria. One randomised controlled trial (RCT), judged "informative with few limitations", found no statistically significant differences in HIV risk between users of the Cu-IUD and either intramuscular depot medroxyprogesterone acetate (DMPA-IM) or levonorgestrel implant. One observational study, deemed "informative but with important limitations", found no statistically significant difference in HIV incidence among IUD users compared with women who had tubal ligation or who were not using any contraception. Another "informative but with important limitations" observational study found no difference in HIV incidence between Cu-IUD users and DMPA or norethisterone enanthate injectable, or implant users. An RCT considered "unlikely to inform the primary question" also found no difference in HIV risk between Cu-IUD and progestogen-only injectable users. Findings from the other three "unlikely to inform the primary question" cohort studies were consistent with the more robust studies suggesting no increased risk of HIV acquisition among Cu-IUD users. CONCLUSION: The collective evidence, including that from a large high-quality RCT, does not indicate an increased risk of HIV acquisition among users of Cu-IUDs. |
Safety and effectiveness of hormonal contraception for women who use opioids: a systematic review
Ti A , Stone RH , Whiteman M , Curtis KM . Contraception 2019 100 (6) 480-483 OBJECTIVE: To systematically review the literature around the safety and effectiveness of hormonal contraception for women who use opioids. Our specific research questions are: 1) Among women who use opioids, do those who use hormonal contraception have increased adverse health events compared with those who do not use hormonal contraception? 2) Are there drug interactions between hormonal contraception and opioids that cause decreased effectiveness or increased toxicity from either drug? METHODS: We searched Medline, Embase, PsychInfo, CINAHL, the Cochrane Library, and clinicaltrials.gov through August 2018. We considered randomized controlled trials, cohort studies, and case-control studies, as well as pharmacokinetic and pharmacodynamic studies. We planned to use standard frameworks to assess risk of bias of included studies. RESULTS: The search identified 1852 articles. The full text of 66 articles was reviewed, and none met inclusion criteria. CONCLUSIONS: Because we found no direct evidence on the safety and effectiveness of hormonal contraception for women who use opioids, we considered theoretical concerns. While women with OUD have a high prevalence of co-morbidities, such as viral hepatitis, generally women with medical conditions can safely use most contraceptive methods. When considering the pharmacokinetics and pharmacodynamics of hormonal contraception and opioids, there is little theoretical concern for interactions. Therefore, future research efforts could focus on improving access to the full range of contraceptive methods for women who use opioids, reducing unnecessary barriers to initiating and using contraception, while ensuring voluntary choice related to contraceptive use. |
Workplace interventions to promote sleep health and an alert, healthy workforce
Redeker NS , Caruso CC , Hashmi SD , Mullington JM , Grandner M , Morgenthaler TI . J Clin Sleep Med 2019 15 (4) 649-657 STUDY OBJECTIVES: The purpose of this review is to synthesize the published literature that addresses employer-initiated interventions to improve the sleep of workers and in turn improve health, productivity, absenteeism, and other outcomes that have been associated with sleep disorders or sleep deficiency. METHODS: We conducted a systematic search and a selective narrative review of publications in PubMed from 1966 to December 2017. We extracted study characteristics, including the workers' professions, workplace settings and shift work, and workplace interventions focused on worker sleep. Because of the high degree of heterogeneity in design and outcomes, we conducted a narrative review. RESULTS: We identified 219 publications. After restriction to publications with studies of workplace interventions that evaluated the outcomes of sleep duration or quality, we focused on 47 articles. An additional 13 articles were accepted in the pearling process. Most studies employed non-randomized or controlled pretest and posttest designs and self-reported measures of sleep. The most common workplace interventions were educational programs stressing sleep hygiene or fatigue management. Other interventions included timed napping before or after work, urging increased daytime activity levels, modifying workplace environmental characteristics such as lighting, and screening, and referral for sleep disorders treatment. Overall, most reports indicated that employer efforts to encourage improved sleep hygiene and healthier habits result in improvements in sleep duration, sleep quality, and self-reported sleepiness complaints. CONCLUSIONS: These studies suggest employer-sponsored efforts can improve sleep and sleep-related outcomes. The existing evidence, although weak, suggests efforts by employers to encourage better sleep habits and general fitness result in self-reported improvements in sleep-related outcomes, and may be associated with reduced absenteeism and better overall quality of life. Candidate workplace strategies to promote sleep health are provided. |
Postpartum hormonal contraception use and incidence of postpartum depression: a systematic review
Ti A , Curtis KM . Eur J Contracept Reprod Health Care 2019 24 (2) 1-8 PURPOSE: To evaluate the association between postpartum hormonal contraceptive use and postpartum depression. MATERIALS AND METHODS: We searched the literature through March 2018 on the association between postpartum hormonal contraception use and incident postpartum depression. We used the United States Preventive Services Task Force framework to assess study quality. RESULTS: Of 167 articles identified, four met inclusion criteria. Two studies found no differences in rates of postpartum depression between women using postpartum depot medroxyprogesterone and those not using hormonal contraception; however, a study of women receiving injectable norethisterone enanthate immediately postpartum found a 2-3-fold increased risk of depression at 6 weeks, though not at 3 months. One study compared combined hormonal contraception, progestin-only pills (POPs), etonogestrel implants and levonorgestrel intrauterine devices (LNG-IUDs) with no hormonal contraception, and found a 35-44% decreased risk of postpartum depression with POPs and LNG-IUDs, a small increased risk of postpartum antidepressant use among women using the etonogestrel implant and vaginal ring, and a decreased risk of antidepressant use with POPs. CONCLUSIONS: Limited evidence found no consistent associations between hormonal contraceptive use and incidence of postpartum depression. Future research would be strengthened by using validated diagnostic measures, careful consideration of confounders, and ensuring adequate follow-up time. |
Community-level chlamydial serology for assessing trachoma elimination in trachoma-endemic Niger
Kim JS , Oldenburg CE , Cooley G , Amza A , Kadri B , Nassirou B , Cotter SY , Stoller NE , West SK , Bailey RL , Keenan JD , Gaynor BD , Porco TC , Lietman TM , Martin DL . PLoS Negl Trop Dis 2019 13 (1) e0007127 BACKGROUND: Program decision-making for trachoma elimination currently relies on conjunctival clinical signs. Antibody tests may provide additional information on the epidemiology of trachoma, particularly in regions where it is disappearing or elimination targets have been met. METHODS: A cluster-randomized trial of mass azithromycin distribution strategies for trachoma elimination was conducted over three years in a mesoendemic region of Niger. Dried blood spots were collected from a random sample of children aged 1-5 years in each of 24 study communities at 36 months after initiation of the intervention. A multiplex bead assay was used to test for antibodies to two Chlamydia trachomatis antigens, Pgp3 and CT694. We compared seropositivity to either antigen to clinical signs of active trachoma (trachomatous inflammation-follicular [TF] and trachomatous inflammation-intense [TI]) at the individual and cluster level, and to ocular chlamydia prevalence at the community level. RESULTS: Of 988 children with antibody data, TF prevalence was 7.8% (95% CI 6.1 to 9.5) and TI prevalence was 1.6% (95% CI 0.9 to 2.6). The overall prevalence of antibody positivity to Pgp3 was 27.2% (95% CI 24.5 to 30), and to CT694 was 23.7% (95% CI 21 to 26.2). Ocular chlamydia infection prevalence was 5.2% (95% CI 2.8 to 7.6). Seropositivity to Pgp3 and/or CT694 was significantly associated with TF at the individual and community level and with ocular chlamydia infection and TI at the community level. Older children were more likely to be seropositive than younger children. CONCLUSION: Seropositivity to Pgp3 and CT694 correlates with clinical signs and ocular chlamydia infection in a mesoendemic region of Niger. TRIAL REGISTRATION: ClinicalTrials.gov NCT00792922. |
Abortion surveillance - United States, 2015
Jatlaoui TC , Boutot ME , Mandel MG , Whiteman MK , Ti A , Petersen E , Pazol K . MMWR Surveill Summ 2018 67 (13) 1-45 PROBLEM/CONDITION: Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States. PERIOD COVERED: 2015. DESCRIPTION OF SYSTEM: Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2015, data were received from 49 reporting areas. Abortion data provided by these 49 reporting areas for each year during 2006-2015 were used in trend analyses. Census and natality data were used to calculate abortion rates (number of abortions per 1,000 women aged 15-44 years) and ratios (number of abortions per 1,000 live births), respectively. RESULTS: A total of 638,169 abortions for 2015 were reported to CDC from 49 reporting areas. Among these 49 reporting areas, the abortion rate for 2015 was 11.8 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 188 abortions per 1,000 live births. From 2014 to 2015, the total number of reported abortions decreased 2% (from 652,639), the abortion rate decreased 2% (from 12.1 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 2% (from 192 abortions per 1,000 live births). From 2006 to 2015, the total number of reported abortions decreased 24% (from 842,855), the abortion rate decreased 26% (from 15.9 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 19% (from 233 abortions per 1,000 live births). In 2015, all three measures reached their lowest level for the entire period of analysis (2006-2015). In 2015 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates; women aged >/=30 years accounted for a smaller percentage of abortions and had lower abortion rates. In 2015, women aged 20-24 and 25-29 years accounted for 31.1% and 27.6% of all reported abortions, respectively, and had abortion rates of 19.9 and 17.9 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. In contrast, women aged 30-34, 35-39, and >/=40 years accounted for 17.7%, 10.0%, and 3.5% of all reported abortions, respectively, and had abortion rates of 11.6, 7.0, and 2.5 abortions per 1,000 women aged 30-34, 35-39, and >/=40 years, respectively. From 2006 to 2015, the abortion rate decreased among women in all age groups. In 2015, adolescents aged <15 and 15-19 years accounted for 0.3% and 9.8% of all reported abortions, respectively, and had abortion rates of 0.5 and 6.7 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2006 to 2015, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 41%, and their abortion rate decreased 54%. This decrease in abortion rate was greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2015 and throughout the entire period of analysis were highest among adolescents and lowest among women aged 25-39 years. Abortion ratios decreased from 2006 to 2015 for women in all age groups. In 2015, almost two thirds (65.4%) of abortions were performed at </=8 weeks' gestation, and nearly all (91.1%) were performed at </=13 weeks' gestation. Few abortions were performed between 14 and 20 weeks' gestation (7.6%) or at >/=21 weeks' gestation (1.3%). During 2006-2015 the percentage of all abortions performed at >13 weeks' gestation remained consistently low (</=9.0%). Among abortions performed at </=13 weeks' gestation, a shift occurred toward earlier gestational ages, with the percentage performed at </=6 weeks' gestation increasing 11%. In 2015, 24.6% of all abortions were performed by early medical abortion (a nonsurgical abortion at </=8 weeks' gestation), 64.3% were performed by surgical abortion at </=13 weeks' gestation, and 8.8% were performed by surgical abortion at >13 weeks' gestation; all other methods were uncommon (</=2.2%). Among those that were eligible for early medical abortion on the basis of gestational age (i.e., performed at </=8 weeks' gestation), 35.8% were completed by this method. In 2015, women with one or more previous live births accounted for 59.3% of abortions, and women with no previous live births accounted for 40.7%. Women with one or more previous induced abortions accounted for 43.6% of abortions, and women with no previous abortion accounted for 56.3%. Women with three or more previous births accounted for 14.2% of abortions, and women with three or more previous abortions accounted for 8.2% of abortions. Deaths of women associated with complications from abortion for 2015 are being assessed as part of CDC's Pregnancy Mortality Surveillance System. In 2014, the most recent year for which data were available, six women were identified to have died as a result of complications from legal induced abortion. INTERPRETATION: Among the 49 areas that reported data every year during 2006-2015, decreases in the total number, rate, and ratio of reported abortions resulted in historic lows for the period of analysis for all three measures of abortion. PUBLIC HEALTH ACTION: The data in this report can help program planners and policymakers identify groups of women with the highest rates of abortion. Unintended pregnancy is the major contributor to induced abortion. Increasing access to and use of effective contraception can reduce unintended pregnancies and further reduce the number of abortions performed in the United States. |
Biosafety evaluation of Janus Fe3O4-TiO2 nanoparticles in Sprague Dawley rats after intravenous injection
Su H , Song X , Li J , Iqbal MZ , Kenston SSF , Li Z , Wu A , Ding M , Zhao J . Int J Nanomedicine 2018 13 6987-7001 Introduction: Newly synthesized Janus-structured Fe3O4-TiO2 nanoparticles (NPs) appear to be a promising candidate for the diagnosis and therapy of cancer. Although the toxicity of individual Fe3O4 or TiO2 NPs has been studied extensively, the toxicity of Janus Fe3O4-TiO2 NPs is not clear. Methods: In this study, the biosafety of both Janus Fe3O4-TiO2 NPs (20-25 nm) and the maternal material TiO2 NPs (7-10 nm) were evaluated in Sprague Dawley rats after one intravenous injection into the tail vein. Healthy rats were randomly divided into one control group and six experimental groups. Thirty days after treatment, rats were killed, then blood and tissue samples were collected for hematological, biochemical, element-content, histopathological, and Western blot analysis. Results: The results show that only a slight Ti element accumulation in the heart, spleen, and liver could be found in the Janus Fe3O4-TiO2 NP groups (P>0.05 compared with control). However, significant Ti element accumulation in the spleen, lungs, and liver was found in the TiO2 NP-treated rats. Both Fe3O4-TiO2 NPs and TiO2 NPs could induce certain histopathological abnormalities. Western blot analysis showed that both NPs could induce certain apoptotic or inflammatory-related molecular protein upregulation in rat livers. A certain degree of alterations in liver function and electrolyte and lipid parameters was also observed in rats treated with both materials. However, compared to Janus structure Fe3O4-TiO2 NP-treated groups, TiO2 NPs at 30 mg/kg showed more severe adverse effects. Conclusion: Our results showed that under a low dose (5 mg/kg), both NP types had no significant toxicity in rats. Janus NPs certainly seem less toxic than TiO2 NPs in rats at 30 mg/kg. To ensure safe use of these newly developed Janus NPs in cancer diagnosis and therapy, further animal studies are needed to evaluate long-term bioeffects. |
Challenges of service coordination for evacuees of Hurricane Maria through the National Disaster Medical System
Vora NM , Grober A , Goodwin BP , Davis MS , McGee C , Luckhaupt SE , Cockrill JA , Ready S , Bluemle LN , Brewer L , Brown A , Brown C , Clement J , Downie DL , Garner MR , Lerner R , Mahool M , Mojica SA , Nolen LD , Pedersen MR , Chappell-Reed MJ , Richards E , Smith J , Weekes KC , Dickinson J , Weir C , Bowman TI , Eckes J . J Emerg Manag 2018 16 (3) 203-206 OBJECTIVE: To describe the challenges of service coordination through the National Disaster Medical System (NDMS) for Hurricane Maria evacuees, particularly those on dialysis. DESIGN: Public health report. SETTING: Georgia. REPORT: On November 25, 2017, there were 208 patients evacuated to Georgia in response to Hurricane Maria receiving NDMS support. Most were evacuated from the US Virgin Islands (97 percent) and the remaining from Puerto Rico (3 percent); 73 percent of these patients were on dialysis, all from the US Virgin Islands. From the beginning of the evacuation response through November 25, 2017, there were 282 patients evacuated to Georgia via NDMS, with a median length of coverage through NDMS for those on and not on dialysis of 60 and 16 days, respectively. CONCLUSION: The limited capacity and capability of dialysis centers currently in the US Virgin Islands are delaying the return to home of many Hurricane Maria evacuees who are on dialysis. |
Maternal smoking during pregnancy and offspring overweight: is there a dose-response relationship An individual patient data meta-analysis
Albers L , Sobotzki C , Kuss O , Ajslev T , Batista RF , Bettiol H , Brabin B , Buka SL , Cardoso VC , Clifton VL , Devereux G , Gilman SE , Grzeskowiak LE , Heinrich J , Hummel S , Jacobsen GW , Jones G , Koshy G , Morgen CS , Oken E , Paus T , Pausova Z , Rifas-Shiman SL , Sharma AJ , da Silva AA , Sorensen TI , Thiering E , Turner S , Vik T , von Kries R . Int J Obes (Lond) 2018 42 (7) 1249-1264 BACKGROUND/OBJECTIVES: A number of meta-analyses suggest an association between any maternal smoking in pregnancy and offspring overweight obesity. Whether there is a dose-response relationship across number of cigarettes and whether this differs by sex remains unclear. SUBJECT/METHODS: Studies reporting number of cigarettes smoked during pregnancy and offspring BMI published up to May 2015 were searched. An individual patient data meta-analysis of association between the number of cigarettes smoked during pregnancy and offspring overweight (defined according to the International Obesity Task Force reference) was computed using a generalized additive mixed model with non-linear effects and adjustment for confounders (maternal weight status, breastfeeding, and maternal education) and stratification for sex. RESULTS: Of 26 identified studies, 16 authors provided data on a total of 238,340 mother-child-pairs. A linear positive association was observed between the number of cigarettes smoked and offspring overweight for up to 15 cigarettes per day with an OR increase per cigarette of 1.03, 95% CI = [1.02-1.03]. The OR flattened with higher cigarette use. Associations were similar in males and females. Sensitivity analyses supported these results. CONCLUSIONS: A linear dose-response relationship of maternal smoking was observed in the range of 1-15 cigarettes per day equally in boys and girls with no further risk increase for doses above 15 cigarettes. |
Calibration approaches for the measurement of aerosol multielemental concentration using spark emission spectroscopy
Zheng L , Kulkarni P , Dionysiou DD . J Anal At Spectrom 2018 33 (3) 404-412 A multivariate calibration approach, using partial least squares regression, has been developed for the measurement of aerosol elemental concentration. A training set consisting of 25 orthogonal aerosol samples with 9 factors (elements: Cr, Mn, Fe, Ni, Cu, Zn, Cd, Pb, and Ti) and 5 levels (elemental concentrations) was designed. Spectral information was obtained for each aerosol sample using aerosol spark emission spectroscopy (ASES) at a time resolution of 1 minute. Simultaneously, filter samples were collected for the determination of elemental concentration using an inductively coupled plasma mass spectrometry (ICP-MS) analysis. Two regression models, PLS1 and PLS2, were developed to predict mass concentration from spectral measurements. The prediction ability of the models improved substantially when only signature wavelengths were included instead of the entire spectrum. The PLS1 model with 45 selected spectral variables (PLS1-45 model) presented the lowest relative root mean square error of cross validation (RMSECV; 16-35%). The detection limits using the PLS1-45 model for the nine elements were in the range of 0.16-0.50 μg m-3. The performance of both multivariate and univariate regression models was tested for an unknown sample of welding fume aerosol. The multivariate model did not provide significantly better prediction compared to the univariate model. In spite of the difference in the matrices of the calibration aerosol and the unknown test aerosol, the results from the PLS model show good agreement with those from filter measurements. The relative root mean square error of prediction (RMSEP) obtained from the PLS1-45 model was 13% for Cr, 23% for Fe, 22% for Mn and 12% for Ni. The study shows that in spite of lower spectral resolution and lack of sample preparation, reliable and robust measurements can be obtained using the proposed calibration method based on PLS regression. |
Developmental effects of childhood household adversity, transitions, and relationship quality on adult outcomes of socioeconomic status: Effects of substantiated child maltreatment
Stevens AL , Herrenkohl TI , Mason WA , Smith GL , Klevens J , Merrick MT . Child Abuse Negl 2018 79 42-50 The degree to which child maltreatment interacts with other household adversities to exacerbate risk for poor adult socioeconomic outcomes is uncertain. Moreover, the effects of residential, school, and caregiver transitions during childhood on adult outcomes are not well understood. This study examined the relation between household adversity and transitions in childhood with adult income problems, education, and unemployment in individuals with or without a childhood maltreatment history. The potential protective role of positive relationship quality in buffering these risk relationships was also tested. Data were from the Lehigh Longitudinal Study (n=457), where subjects were assessed at preschool, elementary, adolescent, and adult ages. Multiple group path analysis tested the relationships between childhood household adversity; residential, school, and caregiver transitions; and adult socioeconomic outcomes for each group. Caregiver relationship quality was included as a moderator, and gender as a covariate. Household adversity was negatively associated with education level and positively associated with income problems for non-maltreated children only. For both groups, residential transitions was negatively associated with education level and caregiver transitions was positively associated with unemployment problems. Relationship quality was positively associated with education level only for non-maltreated children. For children who did not experience maltreatment, reducing exposure to household adversity is an important goal for prevention. Reducing exposure to child maltreatment for all children remains an important public health priority. Results underscore the need for programs and policies that promote stable relationships and environments. |
Introduction and establishment of raccoon rabies on islands: Jekyll Island, Georgia as a case study
Ortiz S , Hernandez SM , Yabsley MJ , Becker TI , Carswell B , Moore Y , Fenton H , Bahnson CS , Niedringhaus K , Elsmo E , Orciari L , Yager P , Stedman NL , Nelson SEJr , Norton TM . J Wildl Dis 2018 54 (2) 329-334 The introduction of rabies virus (RABV) to barrier islands, which are often popular tourist destinations with resource-rich habitats and connectivity and proximity to the mainland, is especially concerning because it can easily become endemic due to factors like dense rabies-vector populations (e.g., raccoons [ Procyon lotor]), high inter- and intraspecies contact rates, and anthropogenic activities such as supplemental feeding of feral cats ( Felis catus). In January 2013, a neurologic raccoon found on the Jekyll Island (JI), Georgia causeway tested positive for rabies. Mortality investigations of 29 raccoons have been conducted between December 2012-May 2017. The two most-common diagnoses were RABV ( n=11) and canine distemper virus (CDV; n=8). Parvoviral enteritis was diagnosed in four raccoons but no coinfections were diagnosed. There was no apparent seasonality for rabies cases, but all CDV cases occurred in spring-fall. Most (64%) rabies submissions came from residential or recreational use areas located near feral cat feeding stations. Jekyll Island is a popular destination where tourists engage in numerous outdoor activities which facilitate human-wildlife interactions. Concerns regarding public and animal health highlight the importance of rabies surveillance, prevention, and control on islands. This is the first report of rabies on JI and emphasizes the importance of disease investigations because the assumption that neurologic raccoons have CDV, an endemic pathogen, can miss the establishment of novel pathogens such as RABV. |
Lessons learned from the introduction of inactivated poliovirus vaccine in Bangladesh
Estivariz CF , Snider CJ , Anand A , Hampton LM , Bari TI , Billah MM , Chai SJ , Wassilak SG , Heffelfinger JD , Zaman K . J Infect Dis 2017 216 S122-S129 Background We assessed programmatic adaptations and infants' uptake of inactivated poliovirus vaccine (IPV) after its introduction into the routine immunization schedule in Bangladesh. Methods Using convenience and probability sampling, we selected 23 health facilities, 36 vaccinators, and 336 caregivers, within 5 districts and 3 city corporations. We collected data during August-October 2015 by conducting interviews, reviewing vaccination records, and observing activities. Results Knowledge about IPV was high among vaccinators (94%). No problems with IPV storage, transport, or waste disposal were detected, but shortages were reported in 20 health facilities (87%). Wastage per 5-dose vaccine vial was above the recommended 30% in 20 health facilities (87%); all were related to providing <5 doses per open vial. Among eligible infants, 87% and 86% received the third dose of pentavalent and oral poliovirus vaccine, respectively, but only 65% received IPV at the same visit. Among 73 infants not vaccinated with IPV, 58% of caregivers reported that vaccine was unavailable. Conclusions Bangladesh successfully introduced IPV, but shortages related to insufficient global supply and high vaccine wastage in small outreach immunization sessions might reduce its impact on population immunity. Minimizing wastage and use of a 2-dose fractional-IPV schedule could extend IPV immunization to more children. |
High school start times and the impact on high school students: What we know, and what we hope to learn
Morgenthaler TI , Hashmi S , Croft JB , Dort L , Heald JL , Mullington J . J Clin Sleep Med 2016 12 (12) 1681-1689 STUDY OBJECTIVES: Several organizations have provided recommendations to ensure high school starts no sooner than 08:30. However, although there are plausible biological reasons to support such recommendations, published recommendations have been based largely on expert opinion and a few observational studies. We sought to perform a critical review of published evidence regarding the effect of high school start times on sleep and other relevant outcomes. METHODS: We performed a broad literature search to identify 287 candidate publications for inclusion in our review, which focused on studies offering direct comparison of sleep time, academic or physical performance, behavioral health measures, or motor vehicular accidents in high school students. Where possible, outcomes were combined for meta-analysis. RESULTS: After application of study criteria, only 18 studies were suitable for review. Eight studies were amenable to meta-analysis for some outcomes. We found that later school start times, particularly when compared with start times more than 60 min earlier, are associated with longer weekday sleep durations, lower weekday-weekend sleep duration differences, reduced vehicular accident rates, and reduced subjective daytime sleepiness. Improvement in academic performance and behavioral issues is less established. CONCLUSIONS: The literature regarding effect of school start time delays on important aspects of high school life suggests some salutary effects, but often the evidence is indirect, imprecise, or derived from cohorts of convenience, making the overall quality of evidence weak or very weak. This review highlights a need for higher-quality data upon which to base important and complex public health decisions. |
Mediating and moderating effects of social support in the study of child abuse and adult physical and mental health
Herrenkohl TI , Jung H , Klika JB , Mason WA , Brown EC , Leeb RT , Herrenkohl RC . Am J Orthopsychiatry 2016 86 (5) 573-83 A number of cross-sectional and a few longitudinal studies have shown a developmental relationship between child abuse and adult physical and mental health. Published findings also suggest that social support can lessen the risk of adverse outcomes for some abused children. However, few studies have investigated whether social support mediates or moderates the relationship between child abuse and adult physical and mental health. Structural equation modeling was used to examine data on these topics from a longitudinal study of more than 30 years. While a latent construct of physical and emotional child abuse did not predict adult health outcomes directly, child abuse did predict outcomes indirectly through social support. A test of variable moderation for child abuse and social support was nonsignificant. Results suggest that social support may help explain the association between child abuse and health outcomes at midlife. Implications of the findings for prevention and treatment are discussed. |
The public health model of child maltreatment prevention
Herrenkohl TI , Leeb RT , Higgins D . Trauma Violence Abuse 2016 17 (4) 363-5 Child maltreatment remains an area of concern for child advocates, policy makers, service providers, and researchers across the globe and presents an enduring threat to public health (Herrenkohl, Higgins, Merrick, & Leeb, 2015). In 2013, over 3.5 million referrals were made to child protective services in the United States and over 2 million cases, a rate of almost 29 per 1,000 children in the U.S. population, were investigated out of concern for the health and safety of the children involved (U.S. Department of Health and Human Services [U.S. DHHS], 2016, maltreatment). This figure rises substantially to more than 10% of all U.S. children, when children are asked directly to report their experiences of abuse and neglect (Finkelhor, Turner, Ormrod, & Hamby, 2009). | In other Western countries, the picture is much the same. According to one report from the United Kingdom, nearly 20% of all young people between the ages of 11 and 17 experienced high levels of abuse and neglect prior to adulthood (https://www.nspcc.org.uk/services-and-resources/research-and-resources/2013/how-safe-are-our-children-2013/). In the past decade, the number of children on child protection registers has risen in all four jurisdictions of the United Kingdom and, in Australia. The Australian Institute of Health and Welfare (AIHW, 2016) reported a 35% increase in the number of substantiated maltreatment reports between 2010–2011 and 2014–2015. This pattern is highly concerning because current levels of demand in ‘‘statutory’’ child welfare/protection systems surpass reasonable case load expectations and budgetary affordances. Driven by awareness of the challenges experienced by child welfare agencies overwhelmed and unprepared to accommodate the demand for assistance, many in the social service sector and research community have called for a new model of child welfare—one that places a much stronger emphasis on prevention (Herrenkohl et al., 2015). |
Female chromosome X mosaicism is age-related and preferentially affects the inactivated X chromosome.
Machiela MJ , Zhou W , Karlins E , Sampson JN , Freedman ND , Yang Q , Hicks B , Dagnall C , Hautman C , Jacobs KB , Abnet CC , Aldrich MC , Amos C , Amundadottir LT , Arslan AA , Beane-Freeman LE , Berndt SI , Black A , Blot WJ , Bock CH , Bracci PM , Brinton LA , Bueno-de-Mesquita HB , Burdett L , Buring JE , Butler MA , Canzian F , Carreon T , Chaffee KG , Chang IS , Chatterjee N , Chen C , Chen C , Chen K , Chung CC , Cook LS , Crous Bou M , Cullen M , Davis FG , De Vivo I , Ding T , Doherty J , Duell EJ , Epstein CG , Fan JH , Figueroa JD , Fraumeni JF , Friedenreich CM , Fuchs CS , Gallinger S , Gao YT , Gapstur SM , Garcia-Closas M , Gaudet MM , Gaziano JM , Giles GG , Gillanders EM , Giovannucci EL , Goldin L , Goldstein AM , Haiman CA , Hallmans G , Hankinson SE , Harris CC , Henriksson R , Holly EA , Hong YC , Hoover RN , Hsiung CA , Hu N , Hu W , Hunter DJ , Hutchinson A , Jenab M , Johansen C , Khaw KT , Kim HN , Kim YH , Kim YT , Klein AP , Klein R , Koh WP , Kolonel LN , Kooperberg C , Kraft P , Krogh V , Kurtz RC , LaCroix A , Lan Q , Landi MT , Marchand LL , Li D , Liang X , Liao LM , Lin D , Liu J , Lissowska J , Lu L , Magliocco AM , Malats N , Matsuo K , McNeill LH , McWilliams RR , Melin BS , Mirabello L , Moore L , Olson SH , Orlow I , Park JY , Patino-Garcia A , Peplonska B , Peters U , Petersen GM , Pooler L , Prescott J , Prokunina-Olsson L , Purdue MP , Qiao YL , Rajaraman P , Real FX , Riboli E , Risch HA , Rodriguez-Santiago B , Ruder AM , Savage SA , Schumacher F , Schwartz AG , Schwartz KL , Seow A , Wendy Setiawan V , Severi G , Shen H , Sheng X , Shin MH , Shu XO , Silverman DT , Spitz MR , Stevens VL , Stolzenberg-Solomon R , Stram D , Tang ZZ , Taylor PR , Teras LR , Tobias GS , Van Den Berg D , Visvanathan K , Wacholder S , Wang JC , Wang Z , Wentzensen N , Wheeler W , White E , Wiencke JK , Wolpin BM , Wong MP , Wu C , Wu T , Wu X , Wu YL , Wunder JS , Xia L , Yang HP , Yang PC , Yu K , Zanetti KA , Zeleniuch-Jacquotte A , Zheng W , Zhou B , Ziegler RG , Perez-Jurado LA , Caporaso NE , Rothman N , Tucker M , Dean MC , Yeager M , Chanock SJ . Nat Commun 2016 7 11843 ![]() To investigate large structural clonal mosaicism of chromosome X, we analysed the SNP microarray intensity data of 38,303 women from cancer genome-wide association studies (20,878 cases and 17,425 controls) and detected 124 mosaic X events >2 Mb in 97 (0.25%) women. Here we show rates for X-chromosome mosaicism are four times higher than mean autosomal rates; X mosaic events more often include the entire chromosome and participants with X events more likely harbour autosomal mosaic events. X mosaicism frequency increases with age (0.11% in 50-year olds; 0.45% in 75-year olds), as reported for Y and autosomes. Methylation array analyses of 33 women with X mosaicism indicate events preferentially involve the inactive X chromosome. Our results provide further evidence that the sex chromosomes undergo mosaic events more frequently than autosomes, which could have implications for understanding the underlying mechanisms of mosaic events and their possible contribution to risk for chronic diseases. |
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