Comparison 7. Incidence of minor bleeds over all time periods.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
7.1 Heparin vs placebo or untreated control	3	1931	Risk Ratio (M‐H, Random, 95% CI)	6.80 [1.23, 37.49]
7.1.1 LMWH	2	1610	Risk Ratio (M‐H, Random, 95% CI)	9.96 [0.56, 177.08]
7.1.2 UFH	1	107	Risk Ratio (M‐H, Random, 95% CI)	11.24 [0.68, 186.60]
7.1.3 UFH + warfarin	1	214	Risk Ratio (M‐H, Random, 95% CI)	2.42 [0.64, 9.12]