Table 3.

Annual events in patients taking warfarin

	Clinical practice			Pooled data
	No of events	Annual event rate (95% CI)		No of events	Annual event rate (95% CI)
Ischaemic stroke	6	2.0 (0.7 to 4.4)		26	1.4 (0.8 to 2.3)
Transient ischaemic attack	3	1.0 (0.1 to 4.0)		13	0.7 (0.3 to 1.4)
Death from non-cerebral causes	7	2.4 (0.6 to 6.1)		69	3.6 (2.7 to 4.9)
Intracranial haemorrhage	1	0.3 (0.03 to 2.7)		5	0.3 (0.06 to 0.7)
Major bleeding	4	1.4 (0.2 to 4.6)		24	1.3 (0.7 to 2.1)
Minor bleeding	16	5.4 (2.4 to 10.2)		150	9.2 (3.7 to 12)