Comparison 10. Anticoagulants versus control: minor bleeding.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
10.1 Minor bleeding: LMWH vs no thromboprophylaxis	8	2901	Risk Ratio (IV, Random, 95% CI)	1.24 [0.92, 1.68]
10.1.1 Dalteparin	5	815	Risk Ratio (IV, Random, 95% CI)	1.32 [0.77, 2.24]
10.1.2 Nadroparin	1	1150	Risk Ratio (IV, Random, 95% CI)	1.00 [0.69, 1.45]
10.1.3 Certoparin	1	898	Risk Ratio (IV, Random, 95% CI)	1.96 [1.11, 3.46]
10.1.4 Bemiparin	1	38	Risk Ratio (IV, Random, 95% CI)	0.45 [0.09, 2.17]
10.2 Minor bleeding: prophylactic vs intermediate or therapeutic LMWH	1		Risk Ratio (IV, Fixed, 95% CI)	Subtotals only
10.2.1 Prophylactic vs intermediate	1	51	Risk Ratio (IV, Fixed, 95% CI)	Not estimable
10.2.2 Prophylactic vs therapeutic	1	52	Risk Ratio (IV, Fixed, 95% CI)	0.20 [0.01, 3.97]
10.3 Minor bleeding: LMWH vs aspirin	2	781	Risk Ratio (IV, Random, 95% CI)	0.70 [0.17, 2.84]
10.4 Minor bleeding: LMWH vs warfarin	1	439	Risk Ratio (IV, Fixed, 95% CI)	3.01 [0.32, 28.75]
10.5 Minor bleeding: UFH vs no thromboprophylaxis	1	277	Risk Ratio (IV, Fixed, 95% CI)	3.02 [0.12, 73.54]
10.6 Minor bleeding: vitamin K antagonists vs placebo	1	311	Risk Ratio (IV, Fixed, 95% CI)	2.44 [0.64, 9.27]
10.7 Minor bleeding: warfarin vs aspirin	1	440	Risk Ratio (IV, Fixed, 95% CI)	0.17 [0.02, 1.37]