Results

Total Results: 426 records

Showing results for "design sample size".

181. Evidence Summary: Sexually Transmitted Infections: Behavioral Counseling | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/sexually-transmitted-infections-behavioral-counseling
     August 18, 2020 - and summary tables were used to describe important features of the included evidence, including study design … few of the included studies incorporated risk assessment by primary care clinicians into the study design … Evaluating a two-step approach to sexual risk reduction in a publicly-funded STI clinic: rationale, design … Design of a stage-matched intervention trial to increase dual method contraceptive use (Project PROTECT … Design: Not a randomized clinical trial or controlled clinical trial.

182. Screening for Asymptomatic Bacteriuria in Adults: Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/8YfPLRoMwTeaDgxJdYnYbb
     September 24, 2019 - Design: Study did not use an included design or was not a primary research article. … Summary of Study Characteristics, by Populationa Source Study Design (No. of Participants) Country … Probably reflecting small sample sizes, none of the studies reported statistically significant ef- fects … Thus, for treatment benefits and harms, the scope was narrowly defined for study design. … Concept and design: All authors. Acquisition, analysis, or interpretation of data: All authors.

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. 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.

185. Ced9Pf3Pnuhruptzxqza-N (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/cED9Pf3PNUHRUptzXQza-n
     April 01, 2016 - Design: 2 simulation-modeling approaches. Setting: U.S. population. … Disclaimer: The authors are responsible for study design, analysis and interpretation of the data, writing … Author Contributions: Conception and design: D.L. Miglioretti, H.J. de Koning, R.A. Hubbard.

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. 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

189. 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

190. 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

191. 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

192. 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

193. 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

194. 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.

195. 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.

196. 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

197. Screening for Lung Cancer With Low-Dose Computed Tomography: Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/ghbfx9e3A6jQEqVW26y8Jv
     March 09, 2021 - Tomography 9329 Excluded 1989 Full-text articles excluded 934 Ineligible population 290 Ineligible sample … size 179 Ineligible outcome(s) 162 Ineligible study design 103 Ineligible intervention 91 Ineligible … Screening With LDCT Compared With Chest Radiography or With No Screening Source Recruitment years Sample … size; country Mean age (ages eligible), y % Male Baseline smoking status, % Eligibility criteria … First, non–English-language articles were excluded, as were studies with sample size less than 500 or

198. 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.

199. Recommendation: Vision in Children Ages 6 Months to 5 Years: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/vision-in-children-ages-6-months-to-5-years-screening
     September 05, 2017 - Study sample sizes ranged from 63 to 4040 participants. … One trial compared patching plus eyeglasses vs eyeglasses alone vs no treatment. 1 , 37-39 Study sample … sizes ranged from 60 to 180 participants. 1 One of the 3 trials (evaluating patching plus eyeglasses

200. 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