Results

Total Results: 426 records

Showing results for "design sample size".

181. Screening for Postmenopausal Osteoporosis: A Summary of the Evidence (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/2kM7LY6ccceVo8bmdUXhYm
     September 01, 2002 - Agency staff and Task Force members participated in the initial design of the study and reviewed interim … factors assessment (continued) Screening for Postm enopausal O steoporosis 226 Quality Author Design … Problems in the design and reporting of trials of antifungal agents encountered during meta-analysis. … indeterminate results in a reasonable manner. • Spectrum of patients included in study. • Adequate sample … size • Administration of reliable screening test.

182. Evidence Summary: Obstructive Sleep Apnea in Adults: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary29/obstructive-sleep-apnea-in-adults-screening
     November 15, 2022 - change 114 , 115 or a 3- to 4-point change should be the clinically significant threshold for its sample … size calculations or interpretation of findings. 144-146 Also, the American College of Chest Physicians … for obstructive sleep apnoea: results of a randomised placebo controlled trial using parallel group design … (total sample size) by test or outcome Summary of findings by test or outcome Consistency and precision … size and risk of bias due to unclear methods for calculating accuracy of OSA categories Insufficient

183. Cdmdmwet-Hgdkfdveywrn (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/CdmDMWet-hgdKFDVEYwRN_
     May 01, 2014 - Al- though the interventions substantially varied in their inten- sity, components, populations, and sample … sizes, they pro- vide almost no evidence of significant improvements in health outcomes. … Evidence is insufficient because of: the limited number or size of studies; important flaws in study design

184. Evidence Summary: Gestational Diabetes: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/gestational-diabetes-screening
     August 10, 2021 - Two reviewers independently assessed the methodological quality of eligible studies using design-specific … previous USPSTF review evaluating selected women showed no significant effect of screening; however, sample … sizes were small and estimates imprecise. … Across 45 prospective cohort studies on diagnostic accuracy, mean sample size was 500 (range, 42-24,854 … Mean sample size was 326 (range, 21-1000), mean age was 29.2 years (range, 26.3-32.6), and mean BMI was

185. Screening for Unhealthy Drug Use: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/R3y9LSud52CGL8mG4wvxoT
     June 09, 2020 - 212 Publication type 7 Quality 183 Intervention 4 Articles excluded for KQ1c 1 Screener 2 Study design … 1 Quality 4 Articles excluded for KQ3c 1 Screener 2 Study design 1 Quality a Number of citations … Study design: Not a randomized clinical trial or case-crossover trial (KQs 1, 3, 4, 5); not a large … an unblinded design—one trial compared methadone vs usual care and the other trial compared methadone … Concept and design: Patnode, Perdue, Rushkin, O’Connor, Chou.

186. Behavioral Counseling to Prevent Sexually Transmitted Infections: A Systematic Review (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/HQGXw2wkcM7q6TA5eWzdT5
     January 01, 2010 - col- leagues (21), was probably not powered to show a differ- ence in STI incidence, given the small sample … size, rela- tively short follow-up, and low percentages of incident STI. … pregnancy in adolescents receiving a low-intensity counseling intervention, which also had a smaller sample … size and fewer reported pregnancies. … The few trials that evaluated low-intensity interventions had study design factors that may have con-

187. Folic Acid Supplementation for the Prevention of Neural Tube Defects: Recommendation Statement (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/7Y97fjKqmNzNorxTWUcyZK
     January 10, 2017 - Evidence is insufficient because of the limited number or size of studies. important flaws in study design … The newer studies are more subject to design issues than the older ones, which had fewer design flaws … ethnicity.20 These inconsistent results among Hispanic women could be a result of chance due to small sample … sizes.

188. Evidence Summary: Prevention of Dental Caries in Children Younger Than 5 Years: Screening and Interventions | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/prevention-of-dental-caries-in-children-younger-than-age-5-years-screening-and-interventions1
     December 07, 2021 - Data Extraction and Quality Assessment One investigator abstracted details about the study design, … Sample sizes ranged from 123 to 2536 (total 9541 participants). … the fair-quality trials included unclear randomization or allocation concealment methods, open-label design … was present, results consistently favored topical fluoride in analyses stratified by use of cluster design … However, results were consistent in prespecified stratified analyses based on factors related to study design

189. Screening for Genital Herpes Simplex: A Brief Update (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/ZzZp7_aoJn73k9z25w_-qr
     March 01, 2005 - for 10 Screening for Genital Herpes Simplex: Brief Update Study/Year N Population Antiviral/Dose Design … evaluated monthly for clinical signs and symptoms of genital Study/Year N Population Antiviral/Dose Design … The study was not Study/Year N Population Antiviral/Dose Design Table 3. … evaluated the use of antiviral suppression after a first episode of Study/Year N Population Antiviral/Dose Design … However, data from reported cases do not represent a sufficient sample size for reaching reliable and

190. Archived: Final Evidence Summary: Abdominal Aortic Aneurysm: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/abdominal-aortic-aneurysm-screening-february-2005
     February 15, 2005 - Agency staff and Task Force members participated in the initial design of the study and reviewed interim … There were important differences in the design of the 4 population screening trials. … Influence of study design on reported mortality and morbidity rates after abdominal aortic aneurysm repair

191. Final Evidence Summary: Hepatitis C Virus Infection in Adolescents and Adults: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/hepatitis-c-screening
     March 02, 2020 - Data Extraction and Quality Assessment One investigator abstracted details about the study design, … Sample sizes ranged from 20 to 706, mean age ranged from 45 to 68 years, and the proportion of women … sizes ranged from 131 to 50,886 (total n = 116,659), mean age ranged from 42 to 69 years, and the proportion … Evidence Study design … sizes, no unscreened comparison group, reliance on retrospective recall, poorly defined outcomes Low

192. Archived: Evidence Summary: Physical Activity: Behavior Counseling in Primary Care, July 2002 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/physical-activity-behavioral-counseling-primary-care-2002
     July 01, 2002 - We summarized the design, quality, and results of each included trial in an evidence table, focusing … Task Force members participated in the initial design of the review and reviewed interim summaries as … The funding source had no role in the study design, data collection, or synthesis; however, representatives … Nonrandomized trial design (same providers for control and intervention patients based on days of the … Nonrandomized trial design with intervention physicians selected based on personal interest in physical

193. Archived: Final Evidence Review: Healthy Diet: Behavioral Counseling in Primary Care, January 2003 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-review41/diet-behavioral-counseling-primary-care-adults-2003
     January 15, 2003 - for obesity will examine these articles. 7 All included articles used a randomized controlled study design … Staff of the funding agency contributed to the study design, reviewed draft and final manuscripts, and … 21 , 23 , 25 , 30 All included studies were considered to be of good quality, based on randomized design

194. Archived: Breast Cancer: Screening, 1996 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/breast-cancer-screening-1996
     January 01, 1996 - diminish with long-term follow-up, the results are unlikely to achieve statistical significance because sample … size calculations were based on an estimated 40% reduction in breast cancer mortality, which is greater … to lymph nodes. 60 The studies from which these data were obtained, however, suffer from important design … Screening for cancer: theory, analysis and design. Englewood Cliffs, NJ: Prentice-Hall, 1980 55.

195. PII: S0749-3797(01)00261-6 (pdf file)
     www.uspreventiveservicestaskforce.org/uspstf/sites/default/files/inline-files/Harris2001.pdf
     January 01, 2001 - Good or fair quality evidence for the entire preventive service must include studies of sufficient design … Internal validity (including research design) and external validity (generalizability) remain Table … test ● Handles indeterminate results in a reasonable manner ● Spectrum of patients included in study ● Sample … size ● Administration of reliable screening test Am J Prev Med 2001;20(3S) 27 important, but at … As noted above, the current USPSTF has added to this grading of research design an assessment of how

196. From Topic Nomination to Clinical Practice: Making a Task Force Recommendation (pdf file)
     www.uspreventiveservicestaskforce.org/uspstf/sites/default/files/inline-files/from-topic-nomination-to-clinical-practice-resources-overview.pdf
     June 01, 2021 - • The criteria for Topic X include rules for study designs, sample sizes, and populations studied

197. Archived: Evidence Summary: Osteoporosis: Screening, 2002 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/osteoporosis-screening-2002
     September 17, 2002 - Extraction: Selected information about patient population, interventions, clinical endpoints, and study design … Agency staff and Task Force members participated in the initial design of the study and reviewed interim … Problems in the design and reporting of trials of antifungal agents encountered during meta-analysis. … * Evidence codes based on study design categories. 22 I = randomized, controlled trials. … Adequate sample size. Administration of reliable screening test. Return to Table of Contents

198. Screening for Hepatitis B Virus Infection in Nonpregnant Adolescents and Adults: Updated Evidence Report and Systematic Review for the US Preventive Service Task Force (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/TkWNoq6KQb3SoZ54gscLCQ
     July 25, 2016 - Data Abstraction and Quality Rating One investigator abstracted details about the study design, patient … size 1 Cost-effectiveness, outdated 11 Wrong population (cirrhosis) 3 Poor quality 3 Treatment experienced … Sample sizes ranged from 63 to 1531 patients (total n = 3893), and the duration of follow-up ranged from … The trials were not designed to assess these outcomes because of small sample sizes and insufficient … Concept and design: Chou, Jou. Acquisition, analysis, or interpretation of data: All authors.

199. 85-Vhmwwoglhd8Mvajt6Gq (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/85-VHmWWogLhD8mvajT6gq
     April 01, 2015 - Due to methodolog- ical shortcomings in the studies and differences across studies in design, interventions … Sample sizes ranged from 45 to 1164 participants, al- though only 2 studies had more than 500 (27, 28 … Only 5 of the included studies (in 6 publications) reported power or sample size calculations (25, 27 … The sample size of 1 study was calculated to detect a 7% difference in the proportion of infants born … Author Contributions: Conception and design: A.G. Cantor, C. Bougatsos, M. McDonagh.

200. Screening and Interventions to Prevent Dental Caries in Children Younger Than 5 Years: Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/vv5kXtX5QDg2948gog66pd
     December 07, 2021 - Data Extraction and Quality Assessment One investigator abstracted details about the study design, patient … Sample sizes ranged from 123 to 2536 (total 9541 partici- pants). … fair-quality trials included unclear randomization or allocation con- cealment methods, open-label design … enamel lesion; d3, dentin lesion; d4, lesion extending into pulp). b Study adjusted for clustering design … Concept and design: Chou, Dana.