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Total Results: 426 records

Showing results for "design sample size".

321. Behavioral Interventions and Counseling to Prevent Child Abuse and Neglect: A Systematic Review to Update the USPSTF Recommendation (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/SUHq3jffCaucDobFXKewQ_
     February 01, 2013 - English-language trials of the effectiveness of be- havioral interventions and counseling and studies of any design … Stud- ies of any design were included to describe potential ad- verse effects of behavioral interventions … Data Abstraction and Quality Rating An investigator abstracted data about study design and setting; … Summary of Evidence Key Question Studies Design Limitation Consistency Applicability Overall Quality … Author Contributions: Conception and design: S.S. Selph, H.D. Nelson.

322. Archived: C-Reactive Protein as a Risk Factor for Coronary Heart Disease: A Systematic Review and Meta-analyses for the U.S. Preventive Services Task Force: Coronary Heart Disease: Screening Using Non-Traditional Risk Factors | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/c-reactive-protein-as-a-risk-factor-for-coronary-heart-disease-a-systematic-review-and-meta-analyses-for-the-us-preventive-services-task-force/coronary-heart-disease-screening-using-non-traditional-risk-factors-2009
     July 15, 2008 - meta-analyses, however, lacked a systematic assessment of the characteristics and quality of study design … We used standardized forms to abstract data on study design, population, size, CRP measurement, Framingham … These criteria are specific to the study design (cohort or nested case-control) and include such items … outcome measures (major CHD events vs. major CHD plus other CHD events or cardiovascular events), study design … Our search and systematic selection identified 23 studies of appropriate design from 24 cohorts.

323. Archived: Evidence Summary: Breast Cancer: Medications for Risk Reduction | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary27/breast-cancer-medications-for-risk-reduction-2013
     April 15, 2013 - Data Extraction:  Investigators independently extracted data on participants, study design, analysis, … Extraction and Quality Assessment An investigator abstracted details of the patient population, study design … Evidence Studies Design … * Small sample size from a non–primary care setting. † Short follow-up (1 y). … ‡ Not practical for primary care settings, small sample size.

324. Risk Assessment for Cardiovascular Disease With Nontraditional Risk Factors: US Preventive Services Recommendation Statement (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/6cRgd5whkAvSGESSQsrQLR
     January 01, 2020 - Evidence is insufficient because of the limited number or size of studies. important flaws in study design

325. Screening for Colorectal Cancer: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/DYFdTVu-UY3h7CWGdA7Zkh
     July 20, 2021 - Studies whose design was subject to a high risk of bias were excluded, including those studies subject … Data Synthesis and Analysis The results were synthesized by KQ, type of screening test, and study design … Design: Study did not use an included design. … Concept and design: All authors. Acquisition, analysis, or interpretation of data: All authors. … Empirical evidence of design-related bias in studies of diagnostic tests.

326. Screening for Cognitive Impairment in Older Adults: A Systematic Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/s9Hht_QpMB4gQg26rTpcaN
     November 01, 2013 - For harms of screening, we considered any study design reporting harms, including psychological harms … Two reviewers independently appraised all articles by using the USPSTF’s design-specific quality criteria … : 1 Poor quality: 0 Included in SER: 0 Articles excluded for key question 2 Relevance: 9 Design: 62 … Author Contributions: Conception and design: J.S. Lin, E. Eckstrom. … Empirical evidence of design-related bias in studies of diagnos- tic tests. JAMA. 1999;282:1061-6.

327. Archived: Evidence Summary: Cognitive Impairment in Older Adults: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary28/cognitive-impairment-in-older-adults-screening-2014
     October 22, 2013 - For harms of screening, we considered any study design reporting harms, including psychological harms … Two reviewers independently appraised all articles by using the USPSTF's design-specific quality criteria … Empirical evidence of design-related bias in studies of diagnostic tests. JAMA . 1999;282:1061-6. … trials (KQ 1); diagnostic accuracy studies, excluding case–control studies (KQ 2) * ; and any study design

328. Archived: Evidence Summary: Aspirin Use to Prevent Cardiovascular Events: Aspirin Use to Prevent Cardiovascular Disease and Colorectal Cancer: Preventive Medication | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary-aspirin-to-prevent-cardiovascular/aspirin-to-prevent-cardiovascular-disease-and-cancer-april-2016
     April 11, 2016 - dividing the number of events for each outcome by the person-years at risk (calculated by multiplying the sample … size of the control group by the mean follow-up years), thereby assuming constant risks over time. … No conclusions can be made about treatment formulation, which reflects the heterogeneity of trial design … Aspirin and Simvastatin Combination for Cardiovascular Events Prevention Trial in Diabetes (ACCEPT-D): design … Study, Year (Reference) Quality Country Randomly Assigned, n Study Design

329. Screening for Impaired Visual Acuity in Older Adults: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/B73a4kJhxeaYyXK6gozbbY
     May 24, 2022 - Data Abstraction and Quality Rating One investigator abstracted details about the study design, patient … the Vitamin E, Cataract, and Age-related Maculopathy (VECAT) study (n = 1193).18 In the other trials, sample … sizes ranged from 14 to 433. … Concept and design: Chou, Jonas. … The Age-Related Eye Disease Study 2 (AREDS2): study design and baseline characteristics (AREDS2 report

330. Screening for Skin Cancer: Evidence Summary (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/nfQJhay7BJKbhy35DV37xK
     January 01, 2001 - published studies of screening and recorded it in an electronic database: type of screening study, study design … explain the observed differences in outcome.29 Apart from concerns about the strength of the study design

331. Archived: Final Evidence Summary: Suicide Risk: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary48/suicide-risk-screening-2004
     May 15, 2004 - Data Extraction:  A primary reviewer abstracted data on key variables of study population, design, and … Within each study design section, we provide the evidence stratified by age whenever possible. … Using a nested case-control design, Coryell et al. evaluated suicide risk in a long-term cohort of patients … intervention does not produce a statistically significant benefit, whereas studies that have larger sample … sizes typically provide the least intense (and, arguably, likely less efficacious) interventions. 35

332. Recommendation: Colorectal Cancer: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/colorectal-cancer-screening
     May 18, 2021 - (n = 5328) reported on accuracy of CT colonography. 9 , 10 The studies were heterogeneous in study design

333. Aspirin for the Primary Prevention of Cardiovascular Events: A Systematic Evidence Review for the USPSTF (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/wBcZfBcVp8N3-cyT3Peysv
     April 01, 2016 - the number of events for each outcome by the person-years at risk (calculated by mul- tiplying the sample … size of the control group by the mean follow-up years), thereby assuming constant risks over time. … Author Contributions: Conception and design: J. Guirguis- Blake, C.V. Evans, C.A. Senger, E.P. … (n = 52) Articles excluded for KQ 1 (n = 24) Setting: 0 Population: 1 Quality: 1 Study design … articles]) Articles excluded for KQ 2 (n = 35) Setting: 0 Population: 7 Quality: 1 Study design

334. Archived: Final Evidence Summary: Lung Cancer: Screening, May 2004 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary35/lung-cancer-screening-2004
     May 15, 2004 - Sloan-Kettering (MSK) 37 , 63-67 and the Johns Hopkins (JH) studies 38 , 68-72 were identical in design … Evaluation of a clinic-based screening program for lung cancer with a case-control design in Kanagawa … Early Lung Cancer Action Project: overall design and findings from baseline screening. … Biometric design of the Mayo Lung project for early detection and localization of bronchogenic carcinoma … Design of the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial.

335. Evidence Summary: Impaired Visual Acuity in Older Adults: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary/impaired-visual-acuity-screening-older-adults
     May 24, 2022 - Data Abstraction and Quality Rating One investigator abstracted details about the study design, patient … Vitamin E, Cataract, and Age-related Maculopathy (VECAT) study (n = 1193). 18 In the other trials, sample … sizes ranged from 14 to 433. … The Age-Related Eye Disease Study 2 (AREDS2): study design and baseline characteristics (AREDS2 report

336. Archived: Prostate Cancer: Screening, 1996 | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/recommendation/prostate-cancer-screening-1996
     January 01, 1996 - -1.7). 48 A cohort study also reported little benefit from DRE screening, 49 but its methodologic design … cumulative survival rates over 15 years, but the study was conducted in the 1970s and suffered from several design

337. Evidence Summary: Ovarian Cancer: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/ovarian-cancer-screening
     February 13, 2018 - quality if attrition was greater than 40% or differed between groups by 20% or if there were other study design … The strict inclusion and exclusion criteria related to study design and outcome reporting excluded evidence … Otherwise, AHRQ had no role in the design and conduct of the study; collection, management, analysis, … Design: Study did not use an included design. Language: Publication not in English.

338. Archived: Final Evidence Summary: Child Maltreatment: Primary Care Interventions | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary13/child-maltreatment-primary-care-interventions-2013
     January 15, 2013 - English-language trials of the effectiveness of behavioral interventions and counseling and studies of any design … Studies of any design were included to describe potential adverse effects of behavioral interventions … Data Abstraction and Quality Rating An investigator abstracted data about study design and setting; … Key Questions Studies Design … risk assessment or a clinic setting, or not a prevention focus (21); wrong outcome (27); wrong study design

339. Archived: Evidence Summary: Prostate Cancer: Screening | United States Preventive Services Taskforce
     www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary43/prostate-cancer-screening-2012
     October 07, 2011 - Extraction and Quality Assessment One investigator abstracted details about the patient population, study design … Sample sizes ranged from 9026 to 182,160 and maximum follow-up from 11 to 20 years (median, 6 to 14 years … Sample sizes ranged from 72 to 44,630 and duration of follow-up from 1 to 23 years. … indication may be less of an issue in studies that evaluate harms 80 , and analyses stratified by study design … Cancer Intervention Versus Observation Trial: VA/NCI/AHRQ Cooperative Studies Program #407 (PIVOT): design

340. Interventions to Prevent Perinatal Depression: US Preventive Services Task Force Recommendation Statement (pdf file)
     www.uspreventiveservicestaskforce.org/home/getfilebytoken/hKRZFsG6c7Kq5ef32cCXa3
     February 12, 2019 - Evidence is insufficient because of the limited number or size of studies. important flaws in study design