1 Subjects: “...Statistics as Topic...”

2 “...RESULTS AND CONCLUSIONS: This investigation provides guidance for statistical practice in relation...”

3 “... evaluated and where possible, statistically pooled. For dichotomous endpoints, we used relative risks...”

4 “... qualitatively evaluated and where possible, statistically pooled. We used random effects derived relative risks...”

5 “... qualitatively evaluated and where possible, statistically pooled. We used random effects derived relative risks...”