Table 3.

 Verified vascular events self reported by healthy postmenopausal women assigned to calcium supplementation or to placebo or reported by family members. Values are numbers of women (numbers of events) unless stated otherwise

Vascular event	Calcium group (n=732)	Placebo group (n=739)	P value*	Relative risk (95% CI)
Myocardial infarction	21 (24)	10 (10)	0.047	2.12 (1.01 to 4.47)
Stroke	31 (34)	22 (23)	0.21	1.42 (0.83 to 2.43)
Sudden death	3	3	1.0	1.01 (0.20 to 4.99)
Myocardial infarction, stroke, or sudden death	51 (61)	35 (36)	0.076	1.47 (0.97 to 2.23)

*Differences between groups in numbers of women with reported events, based on Fisher’s exact test.