Last data update: Mar 21, 2025. (Total: 48935 publications since 2009)
Records 1-30 (of 147 Records) |
Query Trace: Richards J[original query] |
---|
Clinical characterization of acute COVID-19 and Post-COVID-19 Conditions 3 months following infection: A cohort study among Indigenous adults and children in the Southwestern United States
Lutz CS , Hartman RM , Sandoval M , Burrage AB , Christensen L , Close RM , Damon S , Fairlie TA , Hagen MB , Kugler AM , Laeyendecker O , Honie E , Little V , Mostafa HH , Parker D , Richards J , Ritchie N , Roessler KC , Saydah S , Taylor K , Va P , VanDeRiet D , Yazzie D , Hammitt LL , Sutcliffe CG . PLOS Glob Public Health 2025 5 (3) e0004204 ![]() Long-term effects of COVID-19 on multiple organ systems have been reported. Indigenous persons experienced disproportionate morbidity and mortality from COVID-19; however, Post-COVID-19 Conditions (PCC) have not been well described in this population. We conducted a longitudinal cohort study among Indigenous persons living in the Navajo Nation or White Mountain Apache Tribal lands in the Southwest United States who tested positive for SARS-CoV-2 between February 1, 2021 and August 31, 2022. Participants were enrolled during their acute illness and followed for three months. PCC was defined as the presence of any self-reported symptom and/or any sequelae or new condition recorded in the electronic health record at the 3-month visit. Risk factors for PCC were evaluated using Poisson regression with robust standard errors. The analysis included 258 adults and 84 children. Most participants (98.4% of adults, 90.5% of children) experienced a mild, symptomatic acute illness. Over half of adults (57.8%) and a third (39.3%) of children experienced six or more symptoms during the acute illness. Three months post-acute COVID-19, 39.8% of adults and 15.9% of children had symptoms consistent with PCC. Commonly reported symptoms were fatigue/tiredness, cough, headache, runny nose, and myalgia. Among adults enrolled during Omicron predominance, older age and hospitalization for COVID-19 were significantly associated with an increased risk of PCC, and COVID-19 vaccination was significantly associated with a decreased risk of PCC in univariable analysis. In a multivariable analysis, COVID-19 vaccination (risk ratio: 0.56; 95% confidence interval: 0.34, 0.90) remained significantly associated with a decreased risk of PCC. In this cohort of Indigenous persons in the Southwest US, PCC at three months post-acute COVID-19 illness were common, including among individuals with mild acute illness. While the absence of a control group is a limitation, these findings highlight the potential ongoing healthcare needs related to PCC in Indigenous populations. |
Lung cancer incidence, 2019-2020, United States: The potential impact of the COVID-19 pandemic
Kava CM , Siegel DA , Sabatino SA , Qin J , Richards TB , Jane Henley S . Ann Epidemiol 2024 PURPOSE: Cancer incidence declined during the COVID-19 pandemic in part due to health care delivery challenges. We examined the impact of the COVID-19 pandemic on changes in lung cancer incidence. METHODS: We used 2019-2020 US Cancer Statistics data from 49 cancer registries covering 97% of the US population. We calculated the number of new lung cancer diagnoses in 2019 and 2020, age-adjusted lung cancer incidence rates per 100,000 persons, and 2019-to-2020 percentage changes in incidence rates. We also calculated number and percentage of new lung cancer diagnoses by month and stage at diagnosis. RESULTS: The age-adjusted lung cancer incidence rate per 100,000 persons was 47.9 in 2019 vs. 41.4 in 2020-a 13.6% decrease. Differences in the percentage change in incidence rates were observed by age, race and ethnicity, US census region, histology, and stage at diagnosis. A higher percentage of people were diagnosed at distant stage in 2020 than 2019. CONCLUSIONS: This report provides new insight into subgroups that experienced the greatest decline in observed lung cancer incidence during the first year of the COVID-19 pandemic. The findings can be used to inform intervention efforts to improve lung cancer screening, diagnosis, and treatment. |
Preventive service usage and new chronic disease diagnoses: Using PCORnet data to identify emerging trends, United States, 2018-2022
Jackson SL , Lekiachvili A , Block JP , Richards TB , Nagavedu K , Draper CC , Koyama AK , Womack LS , Carton TW , Mayer KH , Rasmussen SA , Trick WE , Chrischilles EA , Weiner MG , Podila PSB , Boehmer TK , Wiltz JL . Prev Chronic Dis 2024 21 E49 BACKGROUND: Data modernization efforts to strengthen surveillance capacity could help assess trends in use of preventive services and diagnoses of new chronic disease during the COVID-19 pandemic, which broadly disrupted health care access. METHODS: This cross-sectional study examined electronic health record data from US adults aged 21 to 79 years in a large national research network (PCORnet), to describe use of 8 preventive health services (N = 30,783,825 patients) and new diagnoses of 9 chronic diseases (N = 31,588,222 patients) during 2018 through 2022. Joinpoint regression assessed significant trends, and health debt was calculated comparing 2020 through 2022 volume to prepandemic (2018 and 2019) levels. RESULTS: From 2018 to 2022, use of some preventive services increased (hemoglobin A(1c) and lung computed tomography, both P < .05), others remained consistent (lipid testing, wellness visits, mammograms, Papanicolaou tests or human papillomavirus tests, stool-based screening), and colonoscopies or sigmoidoscopies declined (P < .01). Annual new chronic disease diagnoses were mostly stable (6% hypertension; 4% to 5% cholesterol; 4% diabetes; 1% colonic adenoma; 0.1% colorectal cancer; among women, 0.5% breast cancer), although some declined (lung cancer, cervical intraepithelial neoplasia or carcinoma in situ, cervical cancer, all P < .05). The pandemic resulted in health debt, because use of most preventive services and new diagnoses of chronic disease were less than expected during 2020; these partially rebounded in subsequent years. Colorectal screening and colonic adenoma detection by age group aligned with screening recommendation age changes during this period. CONCLUSION: Among over 30 million patients receiving care during 2018 through 2022, use of preventive services and new diagnoses of chronic disease declined in 2020 and then rebounded, with some remaining health debt. These data highlight opportunities to augment traditional surveillance with EHR-based data. |
Predicting the environmental suitability and identifying climate and sociodemographic correlates of Guinea worm (Dracunculus Medinensis) in chad
Eneanya OA , Delea MG , Cano J , Tchindebet PO , Richards RL , Zhao Y , Meftuh A , Unterwegner K , Guagliardo SAJ , Hopkins DR , Weiss A . Am J Trop Med Hyg 2024 ![]() ![]() A comprehensive understanding of the spatial distribution and correlates of infection are key for the planning of disease control programs and assessing the feasibility of elimination and/or eradication. In this work, we used species distribution modeling to predict the environmental suitability of the Guinea worm (Dracunculus medinensis) and identify important climatic and sociodemographic risk factors. Using Guinea worm surveillance data collected by the Chad Guinea Worm Eradication Program (CGWEP) from 2010 to 2022 in combination with remotely sensed climate and sociodemographic correlates of infection within an ensemble machine learning framework, we mapped the environmental suitability of Guinea worm infection in Chad. The same analytical framework was also used to ascertain the contribution and influence of the identified climatic risk factors. Spatial distribution maps showed predominant clustering around the southern regions and along the Chari River. We also identified areas predicted to be environmentally suitable for infection. Of note are districts near the western border with Cameroon and southeastern border with Central African Republic. Key environmental correlates of infection as identified by the model were proximity to permanent rivers and inland lakes, farmlands, land surface temperature, and precipitation. This work provides a comprehensive model of the spatial distribution of Guinea worm infections in Chad 2010-2022 and sheds light on potential environmental correlates of infection. As the CGWEP moves toward elimination, the methods and results in this study will inform surveillance activities and help optimize the allocation of intervention resources. |
Travel health-related preparation practices of institutions of higher education and occurrence of health-related events among undergraduate students studying abroad, 2018-2021
Angelo KM , Ciampaglio K , Richards J , Silva A , Ebelke C , Flaherty GT , Brunette G , Kohl S . Frontiers (Boston) 2024 36 (1) 418-498 BACKGROUND: Knowledge of specific health-related events encountered by students studying abroad and the availability and use of pre-travel healthcare for these students is lacking. METHODS: Anonymous web-based questionnaires were sent to study abroad offices, student health centers, and undergraduate students after studying abroad at eight institutions of higher education in the United States and Ireland from 2018-2021. Analyses were descriptive; relative risks and 95% confidence intervals were calculated for health-related events. RESULTS: One study abroad office required a pre-travel consultation. All student health centers had pre-travel counseling available. Among 686 students, there were 307 infectious and 1,588 non-infectious health-related issues; 12 students (2%) were hospitalized. Duration of travel and timing of a pre-travel consultation impacted the risk of health-related events. Certain mental health conditions were associated with increased risk of alcohol and drug use. CONCLUSION: Future studies should address the optimal timing and best practices to optimize health for students studying abroad. |
Patterns of care for Medicare beneficiaries with metastatic prostate cancer
Filson CP , Richards TB , Ekwueme DU , Howard DH . Urol Pract 2024 11 (3) 489-497 INTRODUCTION: Therapeutic options for men with metastatic prostate cancer have increased in the past decade. We studied recent treatment patterns for men with metastatic prostate cancer and how treatment patterns have changed over time. METHODS: Using the Surveillance, Epidemiology, and End Results‒Medicare database, we identified fee-for-service Medicare beneficiaries who either were diagnosed with metastatic prostate cancer or developed metastases following diagnosis, as indicated by the presence of claims with diagnoses codes for metastatic disease, between 2007 and 2017. We evaluated treatment patterns using claims. RESULTS: We identified 29,800 men with metastatic disease, of whom 4721 (18.8%) had metastatic disease at their initial diagnosis. The mean age was 77 years, and 77.9% of patients were non-Hispanic White. The proportion receiving antineoplastic agents within 3 years of the index date increased over time (from 9.7% in 2007 to 25.9% in 2017; P < .001). Opioid use within 3 years of prostate cancer diagnosis was stable during 2007 to 2013 (around 73%) but decreased through 2017 to 65.5% (P < .001). Patients diagnosed during 2015 to 2017 had longer median survival (32.6 months) compared to those diagnosed during 2007 to 2010 (26.6 months; P < .001). CONCLUSIONS: Most metastatic prostate cancer patients do not receive life-prolonging antineoplastic therapies. Improved adoption of effective cancer therapies when appropriate may increase length and quality of survival among metastatic prostate cancer patients. |
Clinical and laboratory findings of the first imported case of Middle East respiratory syndrome coronavirus to the United States.
Kapoor M , Pringle K , Kumar A , Dearth S , Liu L , Lovchik J , Perez O , Pontones P , Richards S , Yeadon-Fagbohun J , Breakwell L , Chea N , Cohen NJ , Schneider E , Erdman D , Haynes L , Pallansch M , Tao Y , Tong S , Gerber S , Swerdlow D , Feikin DR . Clin Infect Dis 2014 59 (11) 1511-8 ![]() BACKGROUND: The Middle East respiratory syndrome coronavirus (MERS-CoV) was discovered September 2012 in the Kingdom of Saudi Arabia (KSA). The first US case of MERS-CoV was confirmed on 2 May 2014. METHODS: We summarize the clinical symptoms and signs, laboratory and radiologic findings, and MERS-CoV-specific tests. RESULTS: The patient is a 65-year-old physician who worked in a hospital in KSA where MERS-CoV patients were treated. His illness onset included malaise, myalgias, and low-grade fever. He flew to the United States on day of illness (DOI) 7. His first respiratory symptom, a dry cough, developed on DOI 10. On DOI 11, he presented to an Indiana hospital as dyspneic, hypoxic, and with a right lower lobe infiltrate on chest radiography. On DOI 12, his serum tested positive by real-time reverse transcription polymerase chain reaction (rRT-PCR) for MERS-CoV and showed high MERS-CoV antibody titers, whereas his nasopharyngeal swab was rRT-PCR negative. Expectorated sputum was rRT-PCR positive the following day, with a high viral load (5.31 × 10(6) copies/mL). He was treated with antibiotics, intravenous immunoglobulin, and oxygen by nasal cannula. He was discharged on DOI 22. The genome sequence was similar (>99%) to other known MERS-CoV sequences, clustering with those from KSA from June to July 2013. CONCLUSIONS: This patient had a prolonged nonspecific prodromal illness before developing respiratory symptoms. Both sera and sputum were rRT-PCR positive when nasopharyngeal specimens were negative. US clinicians must be vigilant for MERS-CoV in patients with febrile and/or respiratory illness with recent travel to the Arabian Peninsula, especially among healthcare workers. |
Health-related quality of life among prostate cancer survivors with metastatic disease and non-metastatic disease and men without a cancer history in the USA
Zheng Z , Shi KS , Kamal A , Howard DH , Horný M , Richards TB , Ekwueme DU , Yabroff KR . J Cancer Surviv 2023 BACKGROUND: Few studies have comprehensively compared health-related quality of life (HRQoL) between metastatic prostate cancer survivors, survivors with non-metastatic disease, and men without a cancer history. METHODS: We used the Surveillance, Epidemiology, and End Results-Medicare Health Outcomes Survey (SEER-MHOS) data linkage to identify men aged ≥ 65 years enrolled in Medicare Advantage (MA) plans. Prostate cancer survivors were diagnosed between 1988 and 2017 and completed MHOS surveys between 1998 and 2019. We analyzed data from 752 metastatic prostate cancer survivors (1040 survey records), 19,583 localized or regional prostate cancer survivors (non-metastatic; 30,121 survey records), and 784,305 men aged ≥ 65 years without a cancer history in the same SEER regions (1.15 million survey records). We used clustered linear regressions to compare HRQoL measures at the person-level using the Veterans RAND 12 Item Health Survey (VR-12) T-scores for general health and physical and mental component summaries. RESULTS: Compared to men without a cancer history, prostate cancer survivors were older, more likely to be married, and had higher socioeconomic status. Compared to men without a cancer history, metastatic prostate cancer survivors reported lower general health (T-score differences [95% confidence interval]: - 6.26, [- 7.14, - 5.38], p < .001), physical health (- 4.33, [- 5.18, - 3.48], p < .001), and mental health (- 2.64, [- 3.40, - 1.88], p < .001) component summaries. Results were similar for other VR-12 T-scores. In contrast, non-metastatic prostate cancer survivors reported similar VR-12 T-scores as men without a cancer history. Further analyses comparing metastatic and non-metastatic prostate cancer survivors support these findings. CONCLUSION: Interventions to improve health-related quality of life for men diagnosed with metastatic prostate cancer merit additional investigation. IMPLICATIONS FOR CANCER SURVIVORS: Interventions to improve health-related quality of life for metastatic prostate cancer survivors merit additional investigation. |
Monitoring and reporting the US COVID-19 vaccination effort
Scharf LG , Adeniyi K , Augustini E , Boyd D , Corvin L , Kalach RE , Fast H , Fath J , Harris L , Henderson D , Hicks-Thomson J , Jones-Jack N , Kellerman A , Khan AN , McGarvey SS , McGehee JE , EMiner C , Moore LB , Murthy BP , Myerburg S , Neuhaus E , Nguyen K , Parker M , Pierce-Richards S , Samchok D , Shaw LK , Spoto S , Srinivasan A , Stearle C , Thomas J , Winarsky M , Zell E . Vaccine 2023 Immunizations are an important tool to reduce the burden of vaccine preventable diseases and improve population health.(1) High-quality immunization data is essential to inform clinical and public health interventions and respond to outbreaks of vaccine-preventable diseases. To track COVID-19 vaccines and vaccinations, CDC established an integrated network that included vaccination provider systems, health information exchange systems, immunization information systems, pharmacy and dialysis systems, vaccine ordering systems, electronic health records, and tools to support mass vaccination clinics. All these systems reported data to CDC's COVID-19 response system (either directly or indirectly) where it was processed, analyzed, and disseminated. This unprecedented vaccine tracking effort provided essential information for public health officials that was used to monitor the COVID-19 response and guide decisions. This paper will describe systems, processes, and policies that enabled monitoring and reporting of COVID-19 vaccination efforts and share challenges and lessons learned for future public health emergency responses. |
Preserving Families of Children in Child Welfare with Fetal Alcohol Spectrum Disorders: Challenges and Opportunities
Richards T , Miller N , Eaton E , Newburg-Rinn S , Bertrand J . Child Welfare 2023 101 (3) 209-234 The mission of child welfare is to ensure children's safety, permanency, and well-being. It is also charged with preserving and strengthening families and with avoiding the removal of children who can be kept at home safely. This paper addresses some of the challenges in meeting these concurrent goals in work with children prenatally exposed to alcohol and their families. Current child welfare practices are unlikely to identify prenatal alcohol exposure or children with fetal alcohol spectrum disorders (FASD). Yet if this exposure is identified when families come into contact with child welfare, a jurisdiction's laws and safety and risk assessment processes may lead to unnecessary removal of children from their homes, particularly for Black and American Indian/Alaska Native families. Drawing from research and discourse in the field, strategies are described that could help the child welfare system care for children who may be impacted by FASD while preserving their families. A crucial strategy is partnering with key child and family service providers to identify and respond to FASD. |
Exploring child welfare practices to care for children with prenatal substance exposure
Wang K , Richards T , Kopiec K , Newburg-Rinn S , Bertrand J . Child Welfare 2023 101 (2) 141-168 This article presents findings from a mixed-methods study exploring child welfare agency practices addressing children with prenatal substance exposure and their families. Data sources include: (a) interviews with 159 professionals in child welfare; (b) surveys with 271 professionals in child welfare; and (c) a systematic review of state and local child welfare documents guiding processes in the five states in the study sample. Findings from descriptive statistics of survey data, grounded theory analysis of interviews, and content analysis of documents suggest practices center on infants identified by hospitals as affected by prenatal substance exposure. Without practice guidance and access to treatment services, the needs of older children whose prenatal exposure to substances, including alcohol and other types of legal and illegal substances, is not recognized at birth may be overlooked. |
Challenges and opportunities to care for children in child welfare with fetal alcohol spectrum disorders while working toward preserving their families
Richards Tammy , Miller Nicole , Eaton Elizabeth , Newburg-Rinn Sharon , Bertrand Jacquelyn . Child Welfare 2023 101 (3) 209-234 The article describes the challenges for child welfare professionals in meeting goals in work with children prenatally exposed to alcohol and their families, as well as ways to address those challenges. Topics include the use and misuse of information on children's prenatal exposure to alcohol, the use of information on a child's prenatal exposure to alcohol to label children as at high risk for future maltreatment, and the need for training to inform service delivery and reduce bias. |
Revisiting the minimum incubation period of Zaire ebolavirus
Kofman AD , Haberling DL , Mbuyi G , Martel LD , Whitesell AN , Van Herp M , Makaya G , Corvil S , Abedi AA , Ngoma PM , Mbuyi F , Mossoko M , Koivogui E , Soke N , Gbamou N , Fonjungo PN , Keita L , Keita S , Shoemaker TR , Richards GA , Montgomery JM , Breman JG , Geisbert TW , Choi MJ , Rollin PE . Lancet Infect Dis 2023 23 (10) 1111-1112 Ebola virus disease (EVD) caused by Ebola virus species Zaire ebolavirus (EBOV) is a major global health challenge causing sporadic outbreaks with high mortality. The minimum incubation period of EBOV, or the time from infection with the virus to the development of first symptoms, is thought to be 2 days and was initially established during the first EVD investigation in 1976.1 A published observation from the investigation noted that, “in one case of the disease, the only possible source of infection was contact with a probable case 48 hours before the latter developed symptoms”, and this observation was restated in another publication.2, 3 However, concluding that the minimum incubation period for EBOV is 2 days based on these reports is flawed for several reasons. First, the presumed source of the infection was a probable case of EVD and was not laboratory-confirmed; it is therefore uncertain whether the source truly had EVD. Second, since the report describes the contact between the source and the case occurring before the source developed symptoms, this implies asymptomatic transmission, which has been established to not occur with EBOV.4, 5, 6 Finally, the report's description of 48 h refers to the time between the case's contact with the alleged source and the source's onset of symptoms, which is itself not an incubation period. |
Geographic Information System Protocol for Mapping Areas Targeted for Mosquito Control in North Carolina (preprint)
Mueller A , Thomas A , Brown J , Young A , Smith K , Connelly R , Richards SL . medRxiv 2022 15 Geographic information systems (GIS) can be used to map mosquito larval and adult habitats and human populations at risk for mosquito exposure and possible arbovirus transmission. GIS can help simplify and target mosquito control efforts during routine surveillance and post-disaster (e.g., hurricane-related flooding) to protect emergency workers and public health. A practical method for prioritizing areas for emergency mosquito control has been developed and is described here. North Carolina (NC) One Map was used to identify state-level data layers of interest based on human population distribution and mosquito habitat in Brunswick, Columbus, Onslow, and Robeson Counties in eastern NC. Relevant data layers were included to create mosquito control treatment areas for targeted control and an 18-step protocol for map development is discussed. This protocol is expected to help state, territorial, tribal, and/or local public health officials and associated mosquito control programs efficiently create treatment area maps to improve strategic planning in advance of a disaster. This protocol may be applied to any NC county and beyond, thereby increasing local disaster preparedness. Copyright The copyright holder for this preprint is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. This article is a US Government work. It is not subject to copyright under 17 USC 105 and is also made available for use under a CC0 license. |
The cost burden of metastatic prostate cancer in the US populations covered by employer-sponsored health insurance
Horný M , Yabroff KR , Filson CP , Zheng Z , Ekwueme DU , Richards TB , Howard DH . Cancer 2023 129 (20) 3252-3262 BACKGROUND: Recent advancements in the clinical management of metastatic prostate cancer include several costly therapies and diagnostic tests. The objective of this study was to provide updated information on the cost to payers attributable to metastatic prostate cancer among men aged 18 to 64 years with employer-sponsored health plans and men aged 18 years or older covered by employer-sponsored Medicare supplement insurance. METHODS: By using Merative MarketScan commercial and Medicare supplemental data for 2009-2019, the authors calculated differences in spending between men with metastatic prostate cancer and their matched, prostate cancer-free controls, adjusting for age, enrollment length, comorbidities, and inflation to 2019 US dollars. RESULTS: The authors compared 9011 patients who had metastatic prostate cancer and were covered by commercial insurance plans with a group of 44,934 matched controls and also compared 17,899 patients who had metastatic prostate cancer and were covered by employer-sponsored Medicare supplement plans with a group of 87,884 matched controls. The mean age of patients with metastatic prostate cancer was 58.5 years in the commercial samples and 77.8 years in the Medicare supplement samples. Annual spending attributable to metastatic prostate cancer was $55,949 per person-year (95% confidence interval [CI], $54,074-$57,825 per person-year) in the commercial population and $43,682 per person-year (95% CI, $42,022-$45,342 per person-year) in the population covered by Medicare supplement plans, both in 2019 US dollars. CONCLUSIONS: The cost burden attributable to metastatic prostate cancer exceeds $55,000 per person-year among men with employer-sponsored health insurance and $43,000 among those covered by employer-sponsored Medicare supplement plans. These estimates can improve the precision of value assessments of clinical and policy approaches to the prevention, screening, and treatment of prostate cancer in the United States. |
The cost of metastatic prostate cancer in the United States
Olsen TA , Filson CP , Richards TB , Ekwueme DU , Howard DH . Urol Pract 2023 10 (1) 41-47 INTRODUCTION: We sought to estimate per patient and annual aggregate health care costs related to metastatic prostate cancer. METHODS: Using the Surveillance, Epidemiology, and End Results-Medicare database, we identified fee-for-service Medicare beneficiaries ages 66 and older diagnosed with metastatic prostate cancer or claims with diagnosis codes for metastatic disease (indicating tumor progression following diagnosis) between 2007 and 2017. We measured annual health care costs and compared costs between cases and a sample of beneficiaries without prostate cancer. RESULTS: We estimate that per-patient annual costs attributable to metastatic prostate cancer are $31,427 (95% CI: $31,219-$31,635; 2019 dollars). Annual attributable costs rose over time, from $28,311 (95% CI: $28,047-$28,575) in 2007-2013 to $37,055 (95% CI: $36,716-$37,394) in 2014-2017. In aggregate, health costs attributable to metastatic prostate cancer are $5.2 to $8.2 billion per year. CONCLUSIONS: The per patient annual health care costs attributable to metastatic prostate cancer are substantial and have increased over time, corresponding to the approval of new oral therapies used in treating metastatic prostate cancer. |
Effectiveness of COVID-19 mRNA vaccines in preventing COVID-19-associated outpatient visits and hospitalizations among American indian and Alaska native persons, January-November 2021: A test-negative case-control analysis using surveillance data
Lutz CS , Hartman RM , Vigil DE , Britton A , Burrage AB , Campbell AP , Close RM , Desnoyers C , Dobson J , Garcia S , Halasa N , Honie E , Kobayashi M , McMorrow M , Mostafa HH , Parker D , Pohl K , Prill MM , Richards J , Roessler KC , Sutcliffe CG , Taylor K , Swango-Wilson A , Va P , Verani JR , Singleton RJ , Hammitt LL . Open Forum Infect Dis 2023 10 (4) ofad172 ![]() BACKGROUND: Despite the disproportionate morbidity and mortality expeHealth Equity and Health Disparitiesrienced by American Indian and Alaska Native (AI/AN) persons during the coronavirus disease 2019 (COVID-19) pandemic, few studies have reported vaccine effectiveness (VE) estimates among these communities. METHODS: We conducted a test-negative case-control analysis among AI/AN persons aged ≥12 years presenting for care from January 1, 2021, through November 30, 2021, to evaluate the effectiveness of mRNA COVID-19 vaccines against COVID-19-associated outpatient visits and hospitalizations. Cases and controls were patients with ≥1 symptom consistent with COVID-19-like illness; cases were defined as those test-positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and controls were defined as those test-negative for SARS-CoV-2. We used unconditional multivariable logistic regression to estimate VE, defined as 1 minus the adjusted odds ratio for vaccination among cases vs controls. RESULTS: The analysis included 207 cases and 267 test-negative controls. Forty-four percent of cases and 78% of controls received 2 doses of either BNT162b2 or mRNA-1273 vaccine. VE point estimates for 2 doses of mRNA vaccine were higher for hospitalized participants (94.6%; 95% CI, 88.0-97.6) than outpatient participants (86.5%; 95% CI, 63.0-95.0), but confidence intervals overlapped. CONCLUSIONS: Among AI/AN persons, mRNA COVID-19 vaccines were highly effective in preventing COVID-associated outpatient visits and hospitalizations. Maintaining high vaccine coverage, including booster doses, will reduce the burden of disease in this population. |
Geographic information system protocol for mapping areas targeted for mosquito control in North Carolina
Mueller A , Thomas A , Brown J , Young A , Smith K , Connelly R , Richards SL . PLoS One 2023 18 (3) e0278253 Geographic information systems (GIS) can be used to map mosquito larval and adult habitats and human populations at risk for mosquito exposure and possible arbovirus transmission. Along with traditional methods of surveillance-based targeted mosquito control, GIS can help simplify and target efforts during routine surveillance and post-disaster (e.g., hurricane-related flooding) to protect emergency workers and public health. A practical method for prioritizing areas for emergency mosquito control has been developed and is described here. North Carolina (NC) One Map was used to identify state-level data layers of interest based on human population distribution and mosquito habitat in Brunswick, Columbus, Onslow, and Robeson Counties in eastern NC. Relevant data layers were included to create mosquito control treatment areas for targeted control and an 18-step protocol for map development is discussed. This protocol is expected to help state, territorial, tribal, and/or local public health officials and associated mosquito control programs efficiently create treatment area maps to improve strategic planning in advance of a disaster. This protocol may be applied to any NC county and beyond, thereby increasing local disaster preparedness. |
Prehospital stroke care part 1: Emergency medical services and the stroke systems of care
Zachrison KS , Nielsen VM , de la Ossa NP , Madsen TE , Cash RE , Crowe RP , Odom EC , Jauch EC , Adeoye OM , Richards CT . Stroke 2022 54 (4) 1138-1147 Acute stroke care begins before hospital arrival, and several prehospital factors are critical in influencing overall patient care and poststroke outcomes. This topical review provides an overview of the state of the science on prehospital components of stroke systems of care and how emergency medical services systems may interact in the system to support acute stroke care. Topics include layperson recognition of stroke, prehospital transport strategies, networked stroke care, systems for data integration and real-time feedback, and inequities that exist within and among systems. |
Use trends and recent expenditures for cervical cancer screening-associated services in Medicare fee-for-service beneficiaries older than 65 years
Qin J , Holt HK , Richards TB , Saraiya M , Sawaya GF . JAMA Intern Med 2022 183 (1) 11-20 IMPORTANCE: Since 1996, the US Preventive Services Task Force has recommended against cervical cancer screening in average-risk women 65 years or older with adequate prior screening. Little is known about the use of cervical cancer screening-associated services in this age group. OBJECTIVE: To examine annual use trends in cervical cancer screening-associated services, specifically cytology and human papillomavirus (HPV) tests, colposcopy, and cervical procedures (loop electrosurgical excision procedure, cone biopsy, and ablation) in Medicare fee-for-service beneficiaries during January 1, 1999, to December 31, 2019, and estimate expenditures for services performed in 2019. DESIGN, SETTING, AND PARTICIPANTS: This population-based, cross-sectional analysis included health service use data across 21 years for women aged 65 to 114 years with Medicare fee-for-service coverage (15-16 million women per year). Data analysis was conducted between July 2021 and April 2022. MAIN OUTCOMES AND MEASURES: Proportion of testing modalities (cytology alone, cytology plus HPV testing [cotesting], HPV testing alone); annual use rate per 1 000 women of cytology and HPV testing, colposcopy, and cervical procedures from 1999 to 2019; Medicare expenditure for these services in 2019. RESULTS: There were 15 323 635 women 65 years and older with Medicare fee-for-service coverage in 1999 and 15 298 656 in 2019. In 2019, the mean (SD) age of study population was 76.2 (8.1) years, 5.1% were Hispanic, 0.5% were non-Hispanic American Indian/Alaska Native, 3.0% were non-Hispanic Asian/Pacific Islander, 7.4% were non-Hispanic Black, and 82.0% were non-Hispanic White. From 1999 to 2019, the percentage of women who received at least 1 cytology or HPV test decreased from 18.9% (2.9 million women) in 1999 to 8.5% (1.3 million women) in 2019, a reduction of 55.3%; use rates of colposcopy and cervical procedures decreased 43.2% and 64.4%, respectively. Trend analyses showed a 4.6% average annual reduction in use of cytology or HPV testing during 1999 to 2019 (P < .001). Use rates of colposcopy and cervical procedures decreased before 2015 then plateaued during 2015 to 2019. The total Medicare expenditure for all services rendered in 2019 was about $83.5 million. About 3% of women older than 80 years received at least 1 service at a cost of $7.4 million in 2019. CONCLUSIONS AND RELEVANCE: The results of this cross-sectional study suggest that while annual use of cervical cancer screening-associated services in the Medicare fee-for-service population older than 65 years has decreased during the last 2 decades, more than 1.3 million women received these services in 2019 at substantial costs. |
CC16 polymorphisms in asthma, asthma subtypes, and asthma control in adults from the Agricultural Lung Health Study.
Gribben KC , Wyss AB , Poole JA , Farazi PA , Wichman C , Richards-Barber M , BeaneFreeman LE , Henneberger PK , Umbach DM , London SJ , LeVan TD , Gribben KC . Respir Res 2022 23 (1) 305 ![]() BACKGROUND: The club cell secretory protein (CC16) has anti-inflammatory and antioxidant effects and is a potential early biomarker of lung damage. The CC16 single nucleotide polymorphism (SNP) rs3741240 risk allele (A) has been inconsistently linked to asthma; other tagging SNPs in the gene have not been explored. The aim was to determine whether CC16 tagging polymorphisms are associated with adult asthma, asthma subtypes or asthma control in the Agricultural Lung Health Study (ALHS). METHODS: The ALHS is an asthma case-control study nested in the Agricultural Health Study cohort. Asthma cases were individuals with current doctor diagnosed asthma, likely undiagnosed asthma, or asthma-COPD overlap defined by questionnaire. We also examined asthma subtypes and asthma control. Five CC16 tagging SNPs were imputed to 1000 Genomes Integrated phase 1 reference panel. Logistic regression was used to estimate associations between CC16 SNPs and asthma outcomes adjusted for covariates. RESULTS: The sample included 1120 asthma cases and 1926 controls of European ancestry, with a mean age of 63 years. The frequency of the risk genotype (AA) for rs3741240 was 12.5% (n=382). CC16 rs3741240 was not associated with adult asthma outcomes. A tagging SNP in the CC16 gene, rs12270961 was associated with uncontrolled asthma (n=208, OR(adj)= 1.4, 95% CI 1.0, 1.9; p=0.03). CONCLUSION: This study, the largest study to investigate associations between CC16 tagging SNPs and asthma phenotypes in adults, did not confirm an association of rs3741240 with adult asthma. A tagging SNP in CC16 suggests a potential relationship with asthma control. |
Multilevel Small Area Estimation for County-Level Prevalence of Mammography Use in the United States Using 2018 Data.
Berkowitz Z , Zhang X , Richards TB , Sabatino SA , Peipins LA , Smith JL . J Womens Health (Larchmt) 2022 32 (2) 216-223 ![]() ![]() Background: The U.S. Preventive Services Task Force recommends biennial screening mammography for average-risk women aged 50-74 years. We aim to generate county-level prevalence estimates for mammography use to examine disparities among counties. Materials and Methods: We used data from the 2018 Behavioral Risk Factor Surveillance System (BRFSS) (n = 111,902 women) and linked them to county-level data from the American Community Survey. We defined two outcomes: mammography within the past 2 years (current); and mammography 5 or more years ago or never (rarely or never). We poststratified the data with U.S. Census estimated county population counts, ran Monte Carlo simulations, and generated county-level estimates. We aggregated estimates to state and national levels. We validated internal consistency between our model-based and BRFSS state estimates using Spearman and Pearson correlation coefficients. Results: Nationally, more than three in four women [78.7% (95% confidence interval {CI}: 78.2%-79.2%)] were current with mammography, although with large variations among counties. Also, nationally, about one in nine women [11% (95% CI: 10.8%-11.3%)] rarely or never had a mammogram. County estimates for being current ranged from 60.4% in New Mexico to 86.9% in Hawaii. Rarely or never having a mammogram ranged from 6% in Connecticut to 23.0% in Alaska, and on average, almost one in eight women in all the counties. Internal consistency correlation coefficient tests were ≥0.94. Conclusions: Our analyses identified marked county variations in mammography use across the country among women aged 50-74 years. We generated estimates for all counties, which may be helpful for targeted outreach to increase mammography uptake. |
Operational insights into mosquito control disaster response in Coastal North Carolina: Experiences with the Federal Emergency Management Agency after Hurricane Florence
Brown Jeffrey S , Byrd Brian D , Connelly CRoxanne , Richards Stephanie L . J Environ Health 2022 85 (2) 24-31 Preparation for post-hurricane mosquito control is essential for an effective emergency response to protect public health and promote recovery efforts. Effective pre-hurricane planning includes laying the groundwork for a successful reimbursement application to the Federal Emergency Management Agency. The critical and overlapping need to sustain funding for mosquito control programs is highlighted here in the context of both normal and emergency responses. Community support is an integral component of an effective integrated pest management program and is established over time with appropriate communication and engagement. Experienced mosquito control operators who are familiar with treatment areas are an essential component of successful operations. Here, practical advice is provided to plan, prepare, and implement a successful ground- and aerial-based mosquito control response. |
User perceptions and use of an enhanced electronic health record in Rwanda with and without clinical alerts: Cross-sectional survey
Fraser HSF , Mugisha M , Remera E , Ngenzi JL , Richards J , Santas X , Naidoo W , Seebregts C , Condo J , Umubyeyi A . JMIR Med Inform 2022 10 (5) e32305 BACKGROUND: Electronic health records (EHRs) have been implemented in many low-resource settings but lack strong evidence for usability, use, user confidence, scalability, and sustainability. OBJECTIVE: This study aimed to evaluate staff use and perceptions of an EHR widely used for HIV care in >300 health facilities in Rwanda, providing evidence on factors influencing current performance, scalability, and sustainability. METHODS: A randomized, cross-sectional, structured interview survey of health center staff was designed to assess functionality, use, and attitudes toward the EHR and clinical alerts. This study used the associated randomized clinical trial study sample (56/112, 50% sites received an enhanced EHR), pulling 27 (50%) sites from each group. Free-text comments were analyzed thematically using inductive coding. RESULTS: Of the 100 participants, 90 (90% response rate) were interviewed at 54 health centers: 44 (49%) participants were clinical and 46 (51%) were technical. The EHR top uses were to access client data easily or quickly (62/90, 69%), update patient records (56/89, 63%), create new patient records (49/88, 56%), generate various reports (38/85, 45%), and review previous records (43/89, 48%). In addition, >90% (81/90) of respondents agreed that the EHR made it easier to make informed decisions, was worth using, and has improved patient information quality. Regarding availability, (66/88) 75% said they could always or almost always count on the EHR being available, whereas (6/88) 7% said never/almost never. In intervention sites, staff were significantly more likely to update existing records (P=.04), generate summaries before (P<.001) or during visits (P=.01), and agree that "the EHR provides useful alerts, and reminders" (P<.01). CONCLUSIONS: Most users perceived the EHR as well accepted, appropriate, and effective for use in low-resource settings despite infrastructure limitation in 25% (22/88) of the sites. The implementation of EHR enhancements can improve the perceived usefulness and use of key functions. Successful scale-up and use of EHRs in small health facilities could improve clinical documentation, care, reporting, and disease surveillance in low- and middle-income countries. |
Adults who have never been screened for colorectal cancer, Behavioral Risk Factor Surveillance System, 2012 and 2020
Richardson LC , King JB , Thomas CC , Richards TB , Dowling NF , ColemanKing S . Prev Chronic Dis 2022 19 E21 In 2018, colorectal cancer (CRC) was the second most diagnosed cancer and the second leading cause of cancer death among cancers that affect both men and women (3). Screening for CRC can lead to fewer cases of cancer through the removal of polyps before they become cancer, the detection of cancers at their earliest stages, and the prevention of cancer deaths (4). | | Studies from the UK of screening by sigmoidoscopy and from the US of screening by colonoscopy showed that even 1-time or infrequent screening has long-term benefits (5,6). Another study showed that 83% of people who were not up to date with CRC screening had never been screened and outlined multiple barriers to getting tested (7). | | We measured the change in prevalence of adults who reported no CRC screening from 2012 to 2020. We also used data on the use of CRC screening tests in 2020 to update a previous report on up-to-date screening (8). |
Computable guidelines and clinical decision support for cervical cancer screening and management to improve outcomes and health equity
Saraiya M , Colbert J , Bhat GL , Almonte R , Winters DW , Sebastian S , O'Hanlon M , Meadows G , Nosal MR , Richards TB , Michaels M , Townsend JS , Miller JW , Perkins RB , Sawaya GF , Wentzensen N , White MC , Richardson LC . J Womens Health (Larchmt) 2022 31 (4) 462-468 Cervical cancer is highly preventable when precancerous lesions are detected early and appropriately managed. However, the complexity of and frequent updates to existing evidence-based clinical guidelines make it challenging for clinicians to stay abreast of the latest recommendations. In addition, limited availability and accessibility to information technology (IT) decision supports make it difficult for groups who are medically underserved to receive screening or receive the appropriate follow-up care. The Centers for Disease Control and Prevention (CDC), Division of Cancer Prevention and Control (DCPC), is leading a multiyear initiative to develop computer-interpretable ("computable") version of already existing evidence-based guidelines to support clinician awareness and adoption of the most up-to-date cervical cancer screening and management guidelines. DCPC is collaborating with the MITRE Corporation, leading scientists from the National Cancer Institute, and other CDC subject matter experts to translate existing narrative guidelines into computable format and develop clinical decision support tools for integration into health IT systems such as electronic health records with the ultimate goal of improving patient outcomes and decreasing disparities in cervical cancer outcomes among populations that are medically underserved. This initiative meets the challenges and opportunities highlighted by the President's Cancer Panel and the President's Cancer Moonshot 2.0 to nearly eliminate cervical cancer. |
The use of electronic health records to inform cancer surveillance efforts: a scoping review and test of indicators for public health surveillance of cancer prevention and control
Conderino S , Bendik S , Richards TB , Pulgarin C , Chan PY , Townsend J , Lim S , Roberts TR , Thorpe LE . BMC Med Inform Decis Mak 2022 22 (1) 91 INTRODUCTION: State cancer prevention and control programs rely on public health surveillance data to set objectives to improve cancer prevention and control, plan interventions, and evaluate state-level progress towards achieving those objectives. The goal of this project was to evaluate the validity of using electronic health records (EHRs) based on common data model variables to generate indicators for surveillance of cancer prevention and control for these public health programs. METHODS: Following the methodological guidance from the PRISMA Extension for Scoping Reviews, we conducted a literature scoping review to assess how EHRs are used to inform cancer surveillance. We then developed 26 indicators along the continuum of the cascade of care, including cancer risk factors, immunizations to prevent cancer, cancer screenings, quality of initial care after abnormal screening results, and cancer burden. Indicators were calculated within a sample of patients from the New York City (NYC) INSIGHT Clinical Research Network using common data model EHR data and were weighted to the NYC population using post-stratification. We used prevalence ratios to compare these estimates to estimates from the raw EHR of NYU Langone Health to assess quality of information within INSIGHT, and we compared estimates to results from existing surveillance sources to assess validity. RESULTS: Of the 401 identified articles, 15% had a study purpose related to surveillance. Our indicator comparisons found that INSIGHT EHR-based measures for risk factor indicators were similar to estimates from external sources. In contrast, cancer screening and vaccination indicators were substantially underestimated as compared to estimates from external sources. Cancer screenings and vaccinations were often recorded in sections of the EHR that were not captured by the common data model. INSIGHT estimates for many quality-of-care indicators were higher than those calculated using a raw EHR. CONCLUSION: Common data model EHR data can provide rich information for certain indicators related to the cascade of care but may have substantial biases for others that limit their use in informing surveillance efforts for cancer prevention and control programs. |
Human papilloma virus vaccination and cervical cancer screening coverage in managed care plans - United States, 2018
Richards TB , Lindley MC , Byron SC , Saraiya M . Prev Med 2022 159 107019 Human papilloma virus (HPV) vaccination for adolescents aged 11-12 years and cervical cancer screening for women aged 21-65 years are recommended to help prevent cervical cancer. The purpose of this study was to describe 2018 National Committee for Quality Assurance (NCQA) Healthcare Effectiveness Data and Information Set (HEDIS) data for the United States on HPV vaccination and cervical cancer screening from 275 commercial preferred provider organizations (PPOs), 219 commercial health maintenance organizations (HMOs), and 204 Medicaid HMOs. The Centers for Disease Control and Prevention and NCQA analyzed the data in 2021. The HEDIS measure for HPV vaccination was the percentage of male and female adolescents aged 13 years who completed HPV immunization (2- or 3-dose series) on or before their 13th birthday. The measure for cervical cancer screening was the percentage of women screened either with cervical cytology within the last 3 years for women aged 21-64 years or with cervical cytology/HPV co-testing within the last 5 years for women aged 30-64 years. Nationally, the mean rate for HPV vaccination in 2018 was 37.8% in Medicaid HMOs, 30.3% in commercial HMOs, and 24.9% in PPOs. The mean rate for cervical cancer screening was 75.9% in commercial HMOs, 72.6% in commercial PPOs, and 60.3% among Medicaid HMOs. Medicaid HMOs reported higher HPV vaccination rates but lower cervical cancer screening rates than commercial plans. These differences raise questions about explanatory factors and how to improve prevention performance by plan category. |
Number of prostate-specific antigen (PSA) screening tests in the last five years reported by men in the United States in 2010, 2015, and 2018
Richards TB , Dai S , Gray SC , Hall IJ , Siegel DA . Urol Oncol 2022 40 (5) 192 e19-192 e25 BACKGROUND: Longer intervals between prostate-specific antigen (PSA) tests for routine prostate cancer screening can reduce the harms while maintaining the benefits of screening. Limited information has been published on PSA screening frequency. The purpose of this report is to describe the number of PSA tests in the last 5 years reported by men in the United States. METHODS: Using data from National Health Interview Survey Cancer Control Supplements in 2010, 2015, and 2018, the number of PSA tests in the last 5 years reported by men ≥40 years was categorized as 4 to 5 PSA tests, 1 to 3 PSA tests, and no PSA tests. Logistic regression was used to calculate model-adjusted prevalence risk ratios (aPRs) for the number of PSA tests in the last 5 years, adjusting for age, racial-ethnic group, education, marital status, and health insurance. RESULTS: The proportion of men aged ≥70 years who reported 4 to 5 PSA tests in the last 5 years decreased from 37.2% in 2010 to 31.1% in 2018, while the proportion reporting 1 to 3 PSA tests increased from 25.5% to 31.9%. In 2018, aPRs for 4 to 5 PSA tests vs. 1 to 3 PSA tests in the last 5 years were significantly higher among men aged 70 to 79 years than among men aged 55 to 69 years. CONCLUSIONS: Men aged ≥70 years reported a small shift to less intense PSA testing between 2010 and 2018, but PSA testing intensity remained higher in men aged ≥70 years than in men aged 55 to 69 years. |
Investigating flubendazole as an anthelmintic treatment for Guinea worm (Dracunculus medinensis): Clinical trials in laboratory-reared ferrets and domestic dogs in Chad
Cleveland CA , Garrett KB , Box EK , Thompson AT , Haynes EK , Elder DL , Richards RL , Majewska AA , Guagliardo SAJ , Wiegand RE , Bryan Ii JA , Torres-Velez F , Unterwegner K , Romero M , Zirimwabagabo H , Sidouin M , Oaukou PT , Ada MM , Ngandolo BNR , Mackenzie CD , Geary TG , Weiss AJ , Yabsley MJ . Am J Trop Med Hyg 2022 106 (5) 1456-65 Dracunculus medinensis (Guinea worm [GW]), a zoonotic nematode targeted for eradication, has been managed using interventions aimed at humans; however, increases in domestic dog GW infections highlight the need for novel approaches. We conducted two clinical trials evaluating the efficacy of subcutaneously injected flubendazole (FBZ) as a treatment of GW infection. The first trial was conducted administering FBZ to experimentally infected ferrets; the second trial involved administering FBZ or a placebo to domestic dogs in the Republic of Tchad (Chad). We found contrasting results between the two trials. When adult gravid female GW were recovered from ferrets treated with FBZ, larvae presented in poor condition, with low to no motility, and an inability to infect copepods. Histopathology results indicated a disruption to morulae development within uteri of worms from treated animals. Results from the trial in Chadian dogs failed to indicate significant treatment of or prevention against GW infection. However, the difference in treatment intervals (1 month for ferrets and 6 months for dogs) or the timing of treatment (ferrets were treated later in the GW life-cycle than dogs) could explain different responses to the subcutaneous FBZ injections. Both trials provided valuable data guiding the use of FBZ in future trials (such as decreasing treatment intervals or increasing the dose of FBZ in dogs to increase exposure), and highlighted important lessons learned during the implementation of a field-based, double-blinded randomized control trial in Chadian dogs. |
- Page last reviewed:Feb 1, 2024
- Page last updated:Mar 21, 2025
- Content source:
- Powered by CDC PHGKB Infrastructure