Fig. 4From: Adding non-randomised studies to a Cochrane review brings complementary information for healthcare stakeholders: an augmented systematic review and meta-analysisPercentage patients with ≥1 hospitalisation and ≥1 unscheduled visit, forest plot by study design. RCT: randomised controlled trial; BA: before-after study (without external control group); XS: cross-sectional study (with concurrent measurement of intervention exposure and outcomes); INT: intervention; CON: control; M-H: Mantel-Haenszel; CI: confidence intervalBack to article page