Last data update: Jul 11, 2025. (Total: 49561 publications since 2009)
Records 1-6 (of 6 Records) |
Query Trace: Fredericks L[original query] |
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Small area estimation of subdistrict diabetes prevalence in the US Virgin Islands, 2021-2022
Labgold K , Orr J , Fredericks L , Delgado D , Roth J Jr , Ellis EM . Prev Chronic Dis 2024 21 E88 |
Breast, cervical, and colorectal cancer screening test use in the US territories of Guam, Puerto Rico, and the US Virgin Islands
Gopalani SV , Soman A , Shapiro JA , Miller JW , Ortiz-Ortiz KJ , Castañeda-Avila MA , Buenconsejo-Lum LE , Fredericks LE , Tortolero-Luna G , Saraiya M . Cancer Epidemiol 2023 84 102371 BACKGROUND: The United States Preventive Services Task Force (USPSTF) recommends breast, cervical, and colorectal cancer screening among eligible adults, but information on screening use in the US territories is limited. METHODS: To estimate the proportion of adults up-to-date with breast, cervical, and colorectal cancer screening based on USPSTF recommendations, we analyzed Behavioral Risk Factor Surveillance System data from 2016, 2018, and 2020 for the 50 US states and DC (US) and US territories of Guam and Puerto Rico and from 2016 for the US Virgin Islands. Age-standardized weighted proportions for up-to-date cancer screening were examined overall and by select characteristics for each jurisdiction. RESULTS: Overall, 67.2% (95% CI: 60.6-73.3) of women aged 50-74 years in the US Virgin Islands, 74.8% (70.9-78.3) in Guam, 83.4% (81.7-84.9) in Puerto Rico, and 78.3% (77.9-78.6) in the US were up-to-date with breast cancer screening. For cervical cancer screening, 71.1% (67.6-74.3) of women aged 21-65 years in Guam, 81.3% (74.6-86.5) in the US Virgin Islands, 83.0% (81.7-84.3) in Puerto Rico, and 84.5% (84.3-84.8) in the US were up-to-date. For colorectal cancer screening, 45.2% (40.0-50.5) of adults aged 50-75 years in the US Virgin Islands, 47.3% (43.6-51.0) in Guam, 61.2% (59.5-62.8) in Puerto Rico, and 69.0% (68.7-69.3) in the US were up-to-date. Adults without health care coverage reported low test use for all three cancers in all jurisdictions. In most jurisdictions, test use was lower among adults with less than a high school degree and an annual household income of < $25,000. CONCLUSION: Cancer screening test use varied between the US territories, highlighting the importance of understanding and addressing territory-specific barriers. Test use was lower among groups without health care coverage and with lower income and education levels, suggesting the need for targeted evidence-based interventions. |
Evaluation, validation, and recognition of the point-of-care circulating cathodic antigen, urine-based assay for mapping Schistosoma mansoni infections
Colley DG , King CH , Kittur N , Ramzy RMR , Secor WE , Fredericks-James M , Ortu G , Clements MN , Ruberanziza E , Umulisa I , Wittmann U , Campbell CH . Am J Trop Med Hyg 2020 103 42-49 Efforts to control Schistosoma mansoni infection depend on the ability of programs to effectively detect and quantify infection levels and adjust programmatic approaches based on these levels and program goals. One of the three major objectives of the Schistosomiasis Consortium for Operational Research and Evaluation (SCORE) has been to develop and/or evaluate tools that would assist Neglected Tropical Disease program managers in accomplishing this fundamental task. The advent of a widely available point-of-care (POC) assay to detect schistosome circulating cathodic antigen (CCA) in urine with a rapid diagnostic test (the POC-CCA) in 2008 led SCORE and others to conduct multiple evaluations of this assay, comparing it with the Kato-Katz (KK) stool microscopy assay-the standard used for more than 45 years. This article describes multiple SCORE-funded studies comparing the POC-CCA and KK assays, the pros and cons of these assays, the use of the POC-CCA assay for mapping of S. mansoni infections in areas across the spectrum of prevalence levels, and the validation and recognition that the POC-CCA, although not infallible, is a highly useful tool to detect low-intensity infections in low-to-moderate prevalence areas. Such an assay is critical, as control programs succeed in driving down prevalence and intensity and seek to either maintain control or move to elimination of transmission of S. mansoni. |
Survey of schistosomiasis in Saint Lucia: Evidence for interruption of transmission
Gaspard J , Usey MM , Fredericks-James M , Sanchez MJ , Atkins L , Campbell CH , Corstjens Plam , van Dam GJ , Colley DG , Secor WE . Am J Trop Med Hyg 2020 102 (4) 827-831 Saint Lucia at one time had levels of schistosomiasis prevalence and morbidity as high as many countries in Africa. However, as a result of control efforts and economic development, including more widespread access to sanitation and safe water, schistosomiasis on the island has practically disappeared. To evaluate the current status of schistosomiasis in Saint Lucia, we conducted a nationally representative school-based survey of 8-11-year-old children for prevalence of Schistosoma mansoni infections using circulating antigen and specific antibody detection methods. We also conducted a questionnaire about available water sources, sanitation, and contact with fresh water. The total population of 8-11-year-old children on Saint Lucia was 8,985; of these, 1,487 (16.5%) provided urine for antigen testing, 1,455 (16.2%) provided fingerstick blood for antibody testing, and 1,536 (17.1%) answered the questionnaire. Although a few children were initially low positives by antigen or antibody detection methods, none could be confirmed positive by follow-up testing. Most children reported access to clean water and sanitary facilities in or near their homes and 48% of the children reported contact with fresh water. Together, these data suggest that schistosomiasis transmission has been interrupted on Saint Lucia. Additional surveys of adults, snails, and a repeat survey among school-age children will be necessary to verify these findings. However, in the same way that research on Saint Lucia generated the data leading to use of mass drug administration for schistosomiasis control, the island may also provide the information needed for guidelines to verify interruption of schistosomiasis transmission (247 words). |
Low prevalence of viable Toxoplasma gondii in fresh, unfrozen, American pasture-raised pork and lamb from retail meat stores in the United States
Dubey JP , Hill DE , Fournet V , Hawkins-Cooper D , Cerqueira-Cézar CK , Murata FHA , Verma SK , Kwok OCH , Rani S , Fredericks J , Adams B , Jones JL , Wiegand RE , Ying Y , Guo M , Su C , Pradhan AK . Food Control 2020 109 In a national survey of fresh, unfrozen, American pasture-raised lamb and pork, the prevalence of viable Toxoplasma gondii was determined in 1500 samples selected by random multistage sampling (750 pork, 750 lamb) obtained from 250 retail meat stores from 10 major geographic areas in the USA. Each sample consisted of a minimum of 500 g of meat purchased from the retail meat case. To detect viable T. gondii, 50 g meat samples of each of 1500 samples were bioassayed in mice. Viable T. gondii was isolated from 2 of 750 lamb samples (unweighted: 0.19%, 0.00–0.46%; weighted: 0.04%, 0.00–0.11%) and 1 of 750 pork samples (unweighted: 0.12%, 0.00–0.37%; weighted: 0.18%, 0.00–0.53%). Overall, the prevalence of viable T. gondii in these retail meats was very low. Nevertheless, consumers, especially pregnant women, should be aware that they can acquire T. gondii infection from ingestion of undercooked meat. |
Iterative development of a tailored mHealth intervention for adolescent and young adult survivors of childhood cancer
Schwartz LA , Psihogios AM , Henry-Moss D , Daniel LC , Ver Hoeve ES , Velazquez-Martin B , Butler E , Hobbie WL , Buchanan Lunsford N , Sabatino SA , Barakat LP , Ginsberg JP , Fleisher L , Deatrick JA , Jacobs LA , O'Hagan B , Anderson L , Fredericks E , Amaral S , Dowshen N , Houston K , Vachani C , Hampshire MK , Metz JM , Hill-Kayser CE , Szalda D . Clin Pract Pediatr Psychol 2019 7 (1) 31-43 Objective: Methods for developing mobile health (mHealth) interventions are not well described. To guide the development of future mHealth interventions, we describe the application of the agile science framework to iteratively develop an mHealth intervention for adolescent and young adult (AYA) survivors of childhood cancer. Method: We created the AYA STEPS mobile app (AYA Self-management via Texting, Education, and Plans for Survivorship) by modifying and integrating 2 existing programs: an online survivorship care plan (SCP) generator and a text messaging self-management intervention for AYA off treatment. The iterative development process involved 3 stages of agile science: (1) formative work, (2) obtaining feedback about the first AYA STEPS prototype, and (3) pilot testing and finalization of a prototype. We determined preferences of AYA stakeholders as well as discovered and addressed technology problems prior to beginning a subsequent randomized controlled trial. Results: AYA survivors reported that the app and the embedded tailored messages related to their health and SCP were easy to use and generally satisfying and beneficial. Usage data supported that AYA were engaged in the app. Technology glitches were discovered in the pilot and addressed. Conclusion: The iterative development of AYA STEPS was essential for creating a consistent and acceptable end user experience. This study serves as one example of how behavioral scientists may apply agile science to their own mHealth research. |
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