Comparison 4. Anticoagulants versus control: fatal PE.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
4.1 Fatal PE: LMWH vs no thromboprophylaxis	7	4286	Risk Ratio (IV, Random, 95% CI)	0.37 [0.11, 1.21]
4.1.1 Dalteparin	3	2419	Risk Ratio (IV, Random, 95% CI)	0.36 [0.07, 1.84]
4.1.2 Enoxaparin	2	679	Risk Ratio (IV, Random, 95% CI)	0.21 [0.01, 4.25]
4.1.3 Nadroparin	1	1150	Risk Ratio (IV, Random, 95% CI)	Not estimable
4.1.4 Bemiparin	1	38	Risk Ratio (IV, Random, 95% CI)	Not estimable