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Exhibit 15. Strength of Evidence for All Literature Reviewed

Guide to Patient and Family Engagement: Environmental Scan Report

Type of DocumentNumber
Systematic reviews
Systematic review of randomized controlled trials1
Systematic review of descriptive studies (quantitative / qualitative)15
Single evaluative studies
Randomized controlled trial3
Nonrandomized controlled trial3
Cohort / case-control study1
Single site intervention (pre/post) / Case series study10
Single site intervention (post only)8
Single descriptive studies
Mixed methods study (qualitative / quantitative)15
Quantitative study26
Descriptive or qualitative study37
Case study / description of implementation65
Scholarly articles or reviews42
Other (e.g., PowerPoint® presentations, workshop summaries)10

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Current as of May 2012
Internet Citation: Exhibit 15. Strength of Evidence for All Literature Reviewed: Guide to Patient and Family Engagement: Environmental Scan Report. May 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/ptfamilyscan/ptfamilyex15.html