Results

Total Results: 426 records

Showing results for "design sample size".

101. Serologic Screening for Genital Herpes: An Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/aHpXYasjc3n6zhaTtoWMwK
     August 01, 2016 - Size Eligible Serologic Tests Population Recruitment Setting; Country Age, Mean (SD), y Sex and … Size Eligible Serologic Tests Population Recruitment Setting; Country Age, Mean (SD), y Sex and … sizes were small, and overall attrition was >20% in both trials. … sizes were small, and overall attrition was >20% in both trials. … Concept and design: Feltner, Grodensky, Ebel, Ashok, Jonas.

102. Screening for Impaired Visual Acuity in Older Adults: Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/DCfAJZvNDzSYu7NqLJX2bv
     March 01, 2016 - Size Reference Standard Target Vision Condition Screening Test Sensitivity (95% CI) Specificity (95% … Size Reference Standard Target Vision Condition Screening Test Sensitivity (95% CI) Specificity (95% … Size Reference Standard Target Vision Condition Screening Test Sensitivity (95% CI) Specificity (95% … sizes were relatively small (n = 94 and 300). … Study concept and design: Chou.

103. Archived: Evidence Summary: Iron Deficiency Anemia in Pregnant Women: Screening and Supplementation | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary22/iron-deficiency-anemia-in-pregnant-women-screening-and-supplementation-september-2015
     March 30, 2015 - Data Extraction and Quality Rating One investigator abstracted details about study design, patient … Due to methodological shortcomings in the studies and differences across studies in design, interventions … Sample sizes ranged from 45 to 1164 participants, although 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 , … size of 1 study was calculated to detect a 7% difference in the proportion of infants born small for

104. Screening for Asymptomatic Carotid Artery Stenosis in the General Population: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/ZgcL6cF6JsFzwRRhaSnqc9
     December 01, 2022 - Concept and design: All authors. Acquisition, analysis, or interpretation of data: All authors. … Concerns of bias in harms estimates of registries and administrative data Very large increase in sample … size Similar or higher complication rates reported in contemporary observational and trial data Abbreviations

105. Effectiveness of Weight Management Interventions in Children: A Targeted Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/b5LjDb3-UoPV8LEWavJWB8
     February 01, 2010 - our previous USPSTF review, in which we found study concerns echoed by oth- ers,45 including small sample … sizes, high attrition rates (among other qual- ity issues), less-than-ideal outcome measures, and highly … Study design a. … patients included in study The test and gold standard are measured independently (blind) of each other Sample … size The test and gold standard are applied as close together in time as possible Administration of

106. Archived: Final Evidence Summary: Speech and Language Delay in Preschool Children: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary47/speech-and-language-delay-in-preschool-children-screening-2006
     February 15, 2006 - Sample size. Administration of reliable screening test. … size (50 to 100 subjects) and a "medium" spectrum of patients. … standard; screening test improperly administered; biased ascertainment of reference standard; very small sample … size of very narrow selected spectrum of patients. … The design and standardization of a speech and language screening test for use with preschool children

107. Archived: Screening and Interventions for Childhood Obesity: Where Is the Evidence? A Commentary by the Childhood Obesity Working Group of the U.S. Preventive Services Task Force: Obesity in Children and Adolescents: Screening, July 2005 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/screening-and-interventions-for-childhood-obesity-where-is-t/obesity-in-children-and-adolescents-screening-2005
     July 11, 2005 - suffer from a number of weaknesses that future studies should be designed to overcome, including small sample … size, lack of intention-to-treat analysis, lack of ethnic minority participants, and little attention

108. Archived: Final Evidence Summary: Vitamin D and Calcium to Prevent Fractures: Preventive Medication | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary52/vitamin-d-and-calcium-to-prevent-fractures-preventive-medication-2013
     December 10, 2011 - For observational studies, we also listed the confounders adjusted for in the study design (for example … These concerns raise many important issues regarding the design and conduct of future trials of dietary … The size of the circle is proportional to the sample size of the RCT. … Size) Methodologic Quality Follow-up Duration Main Findings Supplement or Appendix Figure Providing … † Sample size is specific to the comparison.

109. Vc8Slesu493Dfqmmkadxgl (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/Vc8SLesU493dFQmMKadxGL
     December 01, 2003 - In addition, studies were limited by small sample sizes, high drop-out rates, potential for selection … Although several trials were of good quality, most were judged only fair, with limitations such as small sample … size, potential selection bias (trials often enrolled volunteers), and high drop-out rates. … effects on health outcomes because of limited number or power of studies, important flaws in their design

110. Archived: Final Evidence Summary: Intimate Partner Violence and Abuse of Elderly and Vulnerable Adults: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary32/intimate-partner-violence-and-abuse-of-elderly-and-vulnerable-adults-screening-2013
     May 08, 2012 - screening and interventions, diagnostic accuracy studies of screening instruments, and studies of any design … Data Abstraction and Quality Rating An investigator abstracted data on study design and setting; participant … Studies, by Key Question Design … test not relevant or study was limited (118); wrong intervention (46); wrong outcome (83); wrong study design

111. Archived: Final Evidence Summary: Dental Caries in Children from Birth Through Age 5 Years: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary2/dental-caries-in-children-from-birth-through-age-5-years-screening-2014
     June 15, 2013 - In addition to use of a nonrandomized design, other methodological shortcomings in the poor-quality study … Sample sizes ranged from 280 to 1146 children. … Interventions Country; Setting; Fluoridation Status Age at Enrollment Sample Size F-U, y … Interventions Country; Setting; Fluoridation Status Age at Enrollment Sample Size F-U, y … No evidence 1 randomized trial, 1 nonrandomized trial Overall quality: Poor Nonrandomized design,

112. Recommendation: Autism Spectrum Disorder in Young Children: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/autism-spectrum-disorder-in-young-children-screening
     February 16, 2016 - However, assessment of treatment evidence was complicated by the variation among studies in intervention design … In addition to the limitations of the evidence in size, study design, and other sources of heterogeneity

113. Primary Care Interventions to Support Breastfeeding: Recommendation Statement (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/HMTQY64cVavMZjxR3mCe5E
     January 01, 2020 - Evidence is insufficient because of the limited number or size of studies. important flaws in study design … effects of different interventions and patient populations, future research should include adequate sample … sizes, clear descriptions of the included populations and com- parators, and standardized reporting … Despite great variation in interventions and study design, there was little evidence that the effects

114. Evidence Summary: Anxiety Disorders in Adults: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/anxiety-adults-screening
     June 20, 2023 - antidepressants are addressed in a separate publication. 8 Evidence in the RCTs was limited due to small sample … sizes (eTable 16 in the  JAMA  Supplement). … Design: Study did not use an included design.

115. Archived: Ovarian Cancer: Screening, 1996 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/ovarian-cancer-screening-1996
     January 01, 1996 - transabdominal or transvaginal ultrasound are 50-100% and 76-97%, respectively, 3 , 14 , 15 , 40-43 but small sample … sizes, limited follow-up, and outdated techniques may limit the validity of the data. … A multidisciplinary approach to the early detection of ovarian carcinoma: rationale, protocol design,

116. Archived: Evidence Summary: Visual Impairment in Children Ages 1-5: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary5/visual-impairment-in-children-ages-1-5-screening-2011
     January 15, 2011 - improved school-aged vision outcomes compared with no screening. 22-24 Besides the use of a retrospective design … Screening Study (Year); Design … size Administration of reliable screening test Random or consecutive selection of patients 16 … size (50-100 subjects) and a "medium" spectrum of patients (ie, applicable to most screening settings … size of very narrowly selected spectrum of patients RCTs and Cohort Studies Criteria Initial

117. Archived: Evidence Summary: Prevention of Human Immunodeficiency Virus (HIV) Infection: Preexposure Prophylaxis | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/prevention-of-human-immunodeficiency-virus-hiv-infection-pre-exposure-prophylaxis-june-2019
     June 11, 2019 - for 1 trial 31 rated fair quality because of unclear allocation concealment methods and open-label design … Six studies evaluated men who have sex with men 56-59 , 61 , 62 and 1 study evaluated PWID. 60 Sample … sizes (including development and validation cohorts) ranged from 300 to 9481 patients (total n = 32,311 … The area of each diamond represents the sample size for each pooled estimate (subgroup or overall analysis … The area of each diamond represents the sample size for each pooled estimate (subgroup or overall analysis

118. Evidence for the Reaffirmation of the USPSTF Recommendaiton on Screening for High Blood Pressure (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/KSYrhQuAswGjTww_4sDFGZ
     December 01, 2007 - Blood Pressure* Author, Year (Reference) Study Objective Sample Characteristics Inclusion Criteria Design … For harms of early treat- ment, 2 reviewers abstracted information on sample size, entry criteria, demographic … characteristics, comorbid con- ditions, study design, treatment group allocation, reports of adverse … that were not on hypertension, 62 that included a high-risk population, 31 that did not meet study design

119. Screening for Gonorrhea: Update of the Evidence (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/Wezro6zTSfAWxCrneF-nxB
     May 01, 2005 - • Sample size. • Administration of reliable screening test. … although not best standard; interprets reference standard independent of screening test; moderate sample … size (50 to 100 subjects) and a “medium” spectrum of patients. … standard; screening test improperly administered; biased ascertainment of reference standard; very small sample … size of very narrow selected spectrum of patients.

120. Screening Older Adults for Impaired Visual Acuity: A Review of the Evidence for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/7eLc5kBtomL_HKpYDwsFPf
     July 01, 2009 - size and quality score (36). … Only 4 of the studies included in the systematic review used a controlled design. … Studies of Diagnostic Test Accuracy Study, Year (Reference) Study Type Enrollee Age (Sample Size) … Size (>500) Credible Reference Standard Used Reference Standard Applied to All Patients Screening … Size, n Patient Characteristics Intervention Results Quality Score Laser photocoagulation Macular