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Total Results: 2,098 records

Showing results for "studies".

21. Integrating Bodies of Evidence: Existing Systematic Reviews and Primary Studies (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/integrating-evidence_methods.pdf
    February 01, 2015 - Recommendation: We recommend that newly identified studies be clearly distinguished from studies in … If the new studies would change the conclusions or the SOE judgments or the new studies are in some … We recommend that newly identified studies be clearly distinguished from studies in the existing review … When is it okay not to add new studies (or conduct a search for new studies)? … Grading practices range from grading all studies using own criteria to grading the new studies and comparing

22. Cer-242-Radiation-Therapy-Brain-Metastases-Evidence-Summary (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/cer-242-radiation-therapy-brain-metastases-evidence-summary.pdf
    June 01, 2021 - (97 studies reported in 190 publications). … Eligible studies included RCTs as well as large non-randomized controlled trials and cohort studies … Studies had to report on effects of radiation therapy in the 1990s or later and we included studies … studies varied. … Despite the large number of identified research studies, analyses were limited as studies evaluated

23. Executive Summary_Comparative Effectiveness Review No. 252: Management of Infantile Epilepsies (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-252-infantile-epilepsies-executive-summary.pdf
    October 01, 2022 - studies, and seven pre/post studies) met inclusion criteria for the effectiveness of pharmacologic treatments … Twenty-four studies (2 RCTs of diet, 6 pre/post studies of diet, and 16 pre/post studies of surgery) … For ketogenic diet (KD), all 7 studies (2 RCTs and 5 pre/post studies) support the conclusion that KD … Twelve studies of pharmacologic interventions, four studies of dietary treatments, and 12 studies of … Only pharmacotherapy studies collected and reported harms systematically.

24. Executive Summary_The Effect of Protein Intake on Health: A Systematic Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/effect-protein-intake-executive-summary.pdf
    November 01, 2024 - Improving this evidence base will require more robust long-term studies. … Results Of 11,015 identified studies, 82 articles detailing 81 distinct studies met our inclusion … Among these, 13 studies rated as low to moderate risk of bias were synthesized. … , such as prospective cohort studies. … across studies.

25. CER 222: Evidence Summary: Achieving Health Equity in Preventive Services (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-222-evidence-summary-health-equity.pdf
    January 01, 2020 - Studies of the effectiveness of clinician-patient interventions (KQ3) were differentiated from studies … One hundred twenty- five articles representing 120 unique studies met inclusion criteria; eight studies … a50 studies in 54 publications, b26 studies in 27 publications, c13 studies in 14 publications, d1 study … Studies involved screening for colorectal, breast, or cervical cancer, including five studies that … Few studies addressed the effects of impediments and barriers to preventive care, including no studies

26. Role of Single Group Studies in Agency for Healthcare Research and Quality Comparative Effectiveness Reviews | Effective Health Care (EHC) Program
    effectivehealthcare.ahrq.gov/products/single-group-studies/white-paper

27. When To Select Observational Studies as Evidence | Effective Health Care (EHC) Program
    effectivehealthcare.ahrq.gov/products/methods-guidance-observational-studies/slides

28. Executive Summary: Digestible Carbohydrate Intake and Maternal-Infant Outcomes (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/carbohydrate-intake-executive-summary.pdf
    May 01, 2025 - No studies were identified for some questions and outcomes. … We included randomized controlled trials, nonrandomized intervention studies, and observational studies … Studies were individually evaluated for risk of bias. … Relaxing sample size criteria did not result in the inclusion of additional studies, as most studies … Studies reported sample sizes from 56 to 1,455.

29. Quantitative Synthesis Chapter 3. Choice of Statistical Model for Combining Studies (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/ehc-presentation-quantitative-synthesis-chapter-3.pdf
    February 01, 2018 - Choice of Statistical Model for Combining Studies Quantitative Synthesis Chapter 3. … Choice of Statistical Model for Combining Studies Prepared for: The Agency for Healthcare Research and … . − Therefore differences between studies’ treatment effects are due to random variability … • When a systematic review includes small and large studies, and results of small studies are different … ► For studies with zero events in one arm, or studies with sparse binary data but no zero events,

30. Rapid Response_Linking Dental Services to Treatment Outcomes for Chronic Kidney Disease: A Rapid Response Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/treatment-outcomes-chronic-kidney-rapid-research.pdf
    November 01, 2024 - List of Studies in the Systematic Reviews and Primary Studies Appendix F. … • Clinical practice guidelines • Laboratory studies • Animal studies • Non-clinical studies Language … • Decrease in 9/11 studies • Decrease in 4/5 studies • Decrease in 1/3 studies NR (no Meta … • Decrease in 9/11 studies • Decrease in 4/5 studies • Decrease in 1/3 studies Not reported … List of Studies in the Systematic Reviews and Primary Studies Appendix F.

31. Executive Summary_Comparative Effectiveness Review No. 261_Postpartum Care up to 1 Year After Pregnancy: A Systematic Review and Meta-Analysis (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-261-postpartum-care-executive-summary.pdf
    June 01, 2023 - Eighty-three studies were conducted in the United States and 9 in Canada. … The 92 studies included 50 RCTs (N = 477,954 participants) and 42 NRCSs (i.e., observational studies … For contraceptive care (1 study) and for breastfeeding care (2 studies), the studies did not address … The included studies were mostly at moderate or high risk of bias. … General PP care (2 studies): No conclusion ?

32. Research White Paper: A Framework To Facilitate the Use of Systematic Reviews and Meta-analyses in the Design of Primary Research Studies (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/primary-research-design_research.pdf
    January 01, 2012 - of net benefit given the costs of studies. … , and similarity of included studies. … Included studies of sufficient validity and quality 4. … Insufficient data: too few primary studies, or studies that are too small (sample size inadequate or … The use of systematic reviews when designing studies.

33. EHC Protocol: Addressing Social Isolation To Improve Health of Older Adults: A Rapid Evidence Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/mhs-iv-nursing-staff-shortages.pdf
    October 01, 2024 - selection criteria, or standard appraisal of studies. … Description of Included Studies To efficiently describe eligible primary studies, a single team member … analysis of the findings of those studies. … Criteria for Assessing Internal Validity of Individual Studies. U.S. … ROBINS-I: a tool for assessing risk of bias in non- randomised studies of interventions.

34. Executive Summary_Pharmacologic and Nonpharmacologic Treatments for Posttraumatic Stress Disorder: 2024 Update of the Evidence Base for the PTSD Trials Standardized Data Repository (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-5-final-report-update-2024-executive-summ.pdf
    January 01, 2024 - o Overall, most studies were conducted in the United States (58%) and had sample sizes in the range … data on race only; data were not provided for race or ethnicity in 42 percent of studies. … o Almost a third of studies (30%) targeted specific types of trauma: combat- related trauma was the … and 403 nonpharmacologic studies (trials with no medication arms). … The newly added studies had sample sizes ranging from 22 to 1,001, with most studies (61%) having a

35. Effect-Dietary-Digestible (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/effect-dietary-digestible.pdf
    January 01, 2021 - (used for identifying additional studies) • In vitro studies, nonoriginal data (e.g., narrative … Publications • Studies published in English only • Studies published in peer- reviewed journals … • Studies published at and after the year 2000 • Non-English language studies Abbreviations: BMI … For nonrandomized studies, including quasi-experimental studies, controlled before-and-after studies … studies.

36. Pharmacologic and Nonpharmacologic Treatments for Posttraumatic Stress Disorder: 2023 Update of the Evidence Base for the PTSD Trials Standardized Data Repository (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/pharma-nonpharma-ptsd-2023-update-executive-summ.pdf
    January 01, 2023 - o 20 percent of studies targeted a specific trauma type, and about half of studies allowed a mix of … of the 388 studies using RoB 2 and a second reviewer checked for accuracy. … and 360 nonpharmacologic studies (trials with no medication arms). … The newly added studies had sample sizes ranging from 20 to 916, with most studies having a sample … This update also includes RoB assessment for all 436 previously included studies.

37. Executive summary_Evaluation of Dietary Protein and Amino Acid Requirements: A Systematic Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/dietary-protein-intake-executive-summary.pdf
    November 01, 2024 - When more than two studies were available, different designs and/or methods to calculate the estimate … requirements were used, making comparisons between studies difficult … Future studies, using this new method, should focus on population groups including infants, children … Results We identified 11,408 studies, of which 68 articles reporting on 66 unique studies were eligible … We found very few studies for protein or indispensable amino acids across all populations.

38. Multidisciplinary Postacute Rehabilitation for Moderate to Severe Traumatic Brain Injury in AdultsBrain Injury in Adults Surveillance Report 08082016 CCKK CC final clean (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/traumatic-brain-injury-rehabilitation-surveillance-160902.pdf
    October 08, 2025 - )"all"studies" were"not"included"or"excluded"from"the"original"systematic"review,"b)"all"studies"were"not … /$(7120)$ 2$$$$$exp$case$control$studies/$(779866)$ 3$$$$$exp$cohort$studies/$(1534155)$ 4$$$$$Case … 4776)$ 7$$$$$(Follow$up$adj$(study$or$studies)).tw.$(41015)$ 8$$$$$(observational$adj$(study$or$studies … $We$aimed$to$include$all$studies$of$multidisciplinary$interventions. … $Limiting$included$ studies$to$those$published$in$English$is$not$idealk$however,$studies$conducted$

39. Disposition of Comments_Systematic Review: The Relationship of Digestible Carbohydrate Intake With Cardiovascular Disease, Type 2 Diabetes, Obesity, and Body Composition (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/effect-dietary-digestible-disposition-comments_0.pdf
    March 03, 2025 - In this review, we included both exposure and intervention studies. … Defining low-carb in the scientific literature: A scoping review of clinical studies. … We did not restrict our studies based on carbohydrate intake levels. … We did not restrict our studies based on carbohydrate intake levels. … As responded above, we did not exclude studies with low carbohydrate intakes.

40. Dietary Total Fat Intake and Dietary Polyunsaturated Fatty Acid Intake and Child Growth and Development Outcomes: A Systematic Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/child-growth-development-outcomes-protocol-amended.pdf
    November 18, 2024 - • Studies that exclusively enroll participants hospitalized with an illness or injury • Studies … studies • Case-control studies • All other study designs Geographic Location • Locations … The one exception is studies of adolescents; for those meeting all other eligibility criteria, studies … If older, seminal studies or studies cited in the prior guideline are needed for context we will … If older, seminal studies or studies cited in the prior guideline are needed for context we will