Results

Total Results: 426 records

Showing results for "design sample size".

21. Final Research Plan: Chronic Kidney Disease: Screening | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan/chronic-kidney-disease-screening
    July 13, 2023 - characteristic curve Outcomes not described as included Setting No restrictions   Study Design … Good-quality or fair-quality; poor-quality only if better quality studies are lacking KQs 6–8: Sample … size of <50 patients Duration of followup <6 months *Will evaluate how outcomes vary according

22. Final Research Plan: Hypertension in Adults: Screening | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan/hypertension-in-adults-screening
    October 04, 2018 - Inpatient/residential facilities KQs 1, 2, 4: Settings not generalizable to primary care Study design … , case series, case reports, case-control studies, and simulation studies KQ 3: Studies with a sample … size <100 KQ 4: Cross-sectional studies Country Studies conducted in countries categorized … Language English Other languages than English Study quality Fair or good Poor, according to design-specific

23. Final Research Plan: Unhealthy Alcohol Use in Adolescents and Adults: Screening and Behavioral Counseling Interventions | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan/unhealthy-alcohol-use-adolescents-adults-behavioral-counseling-interventions
    May 16, 2024 - except for studies in pregnant women, for which shorter followup times will be included)   Study design … English Languages other than English Quality Fair or good quality Poor quality (according to design-specific

24. Archived: Evidence Summary: Obstructive Sleep Apnea in Adults: Screening | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/obstructive-sleep-apnea-in-adults-screening-january-2017
    January 24, 2017 - Sample sizes ranged from 32 123 to 67. 124 Overall, the trials provided limited evidence and found … Six studies evaluated AHI as a predictor of all-cause mortality. 144 , 145 , 147 , 150-153 Sample sizes … Those suspected of having OSA; referral populations Small total sample size (type II), missing data … Just 1 trial for bariatric surgery and for each of 5 different airway surgical treatments (sample sizes … Singe studies and small sample sizes for surgical interventions and weight loss programs.

25. Evidence Summary: Bladder Cancer in Adults: Screening | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary14/bladder-cancer-in-adults-screening
    October 15, 2010 - Data Extraction:  Details were abstracted about the patient sample, study design, data analysis, follow-up … Data Abstraction and Quality Assessment We abstracted details on patient population, study design … sizes. … Screening Test Sample Size Results Quality Score Friedman et al, 1995 21 Case patients … size or very narrow selected spectrum of patients.

26. Procedure Manual Section 4. Evidence Review Development | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/about-uspstf/methods-and-processes/procedure-manual/procedure-manual-section-4-evidence-review-development
    June 22, 2025 - questions of benefits and harms, the Task Force currently uses the following hierarchy of research design … experience; descriptive studies or case reports; reports of expert committees Although research design … In general, a "good" study is one that meets all design-specific criteria. … mortality is small, the effect on all-cause mortality may be immeasurably small, even with very large sample … sizes.

27. Screening Adults for Bladder Cancer: A Review of the Evidence for the U.S. Preventive Services Task Force (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/L5UwXoftg4JHw4buVDhjUT
    October 01, 2010 - Data Extraction: Details were abstracted about the patient sample, study design, data analysis, follow-up … Screening Studies Study, Year (Reference) Population Study Design Screening Test Sample Size Results … sizes. … Author Contributions: Conception and design: R. Chou, T. Dana. … size (50–100 persons) and a medium spectrum of patients (i.e., applicable to most screening settings

28. Screening and Routine for Iron Deficiency Anemia: A Systematic Review (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/g-b8KbTXYe2vnW2zJKGoPU
    April 01, 2015 - Enrolled sample sizes ranged from 24 to 493, except for 1 larger study of 1798 children; many studies … size calculations, they were limited to certain outcomes and varying differences in effect sizes.24,26 … Most sample sizes varied from 70 to 428, with 1 study including 1657 children. … sizes for specific outcomes. … sizes for key iron status and clinical health outcomes, are needed.

29. Evidence Summary: Iron Deficiency Anemia in Young Children: Screening | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary23/iron-deficiency-anemia-in-young-children-screening
    March 30, 2015 - Enrolled sample sizes ranged from 24 to 493, except for 1 larger study of 1798 children; many studies … size calculations, they were limited to certain outcomes and varying differences in effect sizes. 24 … Most sample sizes varied from 70 to 428, with 1 study including 1657 children. … sizes for specific outcomes. … sizes for key iron status and clinical health outcomes, are needed.

30. Archived: Evidence Summary: Syphilis Infection in Nonpregnant Adults and Adolescents: Screening | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/syphilis-infection-in-nonpregnant-adults-and-adolescents-june-2016
    June 07, 2016 - Data Extraction and Quality Assessment One investigator abstracted details about study design, patient … absorption (FTA-ABS). 26 These studies were limited by their lack of demographic information and small sample … sizes (n = 198 to 674). … Otherwise, AHRQ had no role in the design and conduct of the study; collection, management, analysis, … excluded for the following reasons: wrong population, wrong intervention, wrong outcomes, wrong study design

31. Archived: Evidence Summary: Screening for Women and Elderly Adults: Intimate Partner Violence and Elderly Abuse: Screening, 2004 | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary-screening-for-women-and-elderly-adults/intimate-partner-violence-and-elderly-abuse-screening-2004
    March 08, 2004 - Data Extraction: Study design, patient populations and settings, methods of assessment or intervention … From each included study, we abstracted the study design, number of participants, setting, length and … Adequate sample size. Administration of reliable screening test. … size (50-100 patients) and a "medium" spectrum of patients. … size of narrow selected spectrum of patients.

32. Screening for Syphilis: Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/TzddJozNQQZYmTohr64wMz
    June 07, 2016 - Data Extraction and Quality Assessment One investigator abstracted details about study design, patient … absorption (FTA-ABS).26 These studies were limited by their lack of demographic information and small sample … sizes (n = 198-674). … Study concept and design: Cantor, Pappas, Nelson. … Otherwise, AHRQ had no role in the design and conduct of the study; collection, management, analysis,

33. Archived: Final Research Plan: Folic Acid for the Prevention of Neural Tube Defects: Preventive Medication | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan108/folic-acid-for-the-prevention-of-neural-tube-defects-preventive-medication-january-2017
    October 16, 2014 - studies (case-control, cohort, registry data) Commentaries, editorials, case reports Sample … size More than 50 participants 50 participants or less Quality Good and

34. Final Research Plan: Folic Acid Supplementation to Prevent Neural Tube Defects: Preventive Medication | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/final-research-plan/folic-acid-for-the-prevention-of-neural-tube-defects-preventive-medication
    October 21, 2021 - Index (as defined by the United Nations Development Programme in 2020) All other countries Sample … size All None Quality Good and fair quality Poor quality Language English Non-English

35. Screening for Obstructive Sleep Apnea in Adults: Evidence Report and Systematic Review for the USPSTF (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/Rm4E5SooP2GnqJ_HVRA5M4
    January 01, 2017 - Sample sizes ranged from 32123 to 67.124 Overall, the trials provided limited evi- dence and found no … Six studies evaluated AHI as a predictor of all-cause mortality.144,145,147,150-153 Sample sizes ranged … Those suspected of having OSA; referral populations Small total sample size (type II), missing data … Just 1 trial for bariatric surgery and for each of 5 different airway surgical treatments (sample sizes … Singe studies and small sample sizes for surgical interventions and weight loss programs.

36. Primary Care Screening for and Treatment of Depression in Pregnant and Postpartum Women: Evidence Report and Systematic Review for the USPSTF (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/svy-CsBNaoaeb7wRGFvLdW
    January 26, 2016 - Design: study did not use an included design. … size, control group remission rates, and time to follow-up were all confounded with each other, conclusions … The possibility of correlation between sample size and effect size raises the concern that the pooled … Furthermore, bias related to small sample sizes has been reported in the psychotherapy literature90,91 … sizes are needed.

37. Screening Women and Elderly Adults for Family and Intimate Partner Violence: A Review of the Evidence (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/SvB6EjoVaaQxQr4vpCRtWp
    March 01, 2004 - From each included study, we abstracted the study design, number of participants, setting, length and … Agency staff and Task Force members participated in the initial design of the study and reviewed interim … • Adequate sample size. • Administration of reliable screening test. … size (50–100 patients) and a “medium” spectrum of patients. … size of narrow selected spectrum of patients.

38. Screening for Hepatitis B Virus Infection in Pregnant Women: Evidence for the Reaffirmation Recommendation Statement (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/mEtSwJk3YPA4BXJ8eZyD2S
    June 01, 2009 - Data Extraction One reviewer abstracted information on study design, sample size, entry criteria, demographic … Excluded (n = 8) Letter: 1 Excluded study design: 4 Not about screening: 1 Not generalizable to U.S. … (n = 1) Excluded (n = 81) Narrative review, editorial, letter, or case report: 11 Excluded study design

39. Behavioral Counseling Interventions to Promote a Healthy Diet and Physical Activity for CVD Prevention in Adults Without Known CVD Risk Factors: Updated Evidence Report and Systematic Review for the USPSTF (pdf file)
    www.uspreventiveservicestaskforce.org/home/getfilebytoken/UXw277rnvJ8e_Dfsh4V3K3
    July 26, 2022 - sizes ranged from 32 to 48 835 participants. … Cluster RCT 20 (18) New study 33 (29) Good-quality rating 23 (20) Conducted in the US 60 (53) Sample … size, median (IQR) [range] 314 (200-710) [32-48 835] Follow-up at 12 mo or closest, median (IQR) [range … these health outcomes are lower in lower-risk groups (by definition), these stud- ies require larger sample … sizes and longer follow-up to observe an effect of an intervention in a low-risk group of participants

40. Evidence Summary: Healthy Diet and Physical Activity for Cardiovascular Disease Prevention in Adults Without Cardiovascular Disease Risk Factors: Behavioral Counseling Interventions | United States Preventive Services Taskforce
    www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/healthy-lifestyle-and-physical-activity-for-cvd-prevention-adults-without-known-risk-factors-behavioral-counseling
    July 26, 2022 - publications, can be found in the full evidence report. 16 Of the RCTs, 60 took place in the US; sample … sizes ranged from 32 to 48,835 participants. … sizes and longer follow-up to observe an effect of an intervention in a low-risk group of participants … Study design: Study was not an RCT or controlled intervention. Aim: Study aim not relevant. … size, median (IQR) [range] 314 (200-710) [32-48,835] Follow-up at 12 mo or closest, median (