Table 4.

Adverse events of prophylactic anticoagulants.

Adverse events	Number of events (total number=1188)	Incidence (95% CI)
Bleeding	24	2.0 (1.3–3.0)
Minor bleeding	17	1.4 (0.8–2.3)
Major bleeding	7	0.6 (0.2–1.2)
Abnormal liver function due to heparin	85	7.2 (5.8–8.8)
HIT	5	0.4 (0.1–1.0)

HIT, heparin-induced thrombocytopenia.