Table 3.

Relationship between treatment allocation to calcium supplementation and risk of event by source and adjudication status

Event source and adjudication	Calcium* (N=732)	Placebo* (N=739)	Relative risk (95% CI)	p Value
Myocardial infarction
Total self-reported events	31	14	2.24 (1.20 to 4.17)	0.0099
Verified self-reported events†	21	10	2.12 (1.01 to 4.47)	0.047
Total hospital discharge coding	24	17	1.43 (0.77 to 2.63)	0.27
Total hospital discharge coding and death certificates	27	18	1.51 (0.84 to 2.73)	0.18
Verified self-reports/hospital discharge coding and death certificates	31	21	1.49 (0.86 to 2.57)	0.16
Stroke
Total self-reported events	40	28	1.44 (0.90 to 2.31)	0.14
Verified self-reported events‡	31	22	1.42 (0.83 to 2.43)	0.21
Total hospital discharge coding	26	20	1.31 (0.74 to 2.32)	0.37
Total hospital discharge coding and death certificates	27	21	1.30 (0.74 to 2.27)	0.38
Verified self-reports/hospital discharge coding and death certificates	34	25	1.45 (0.88 to 2.49)	0.15

*Data are number of women experiencing an incident event.

†Includes one incident myocardial infarction identified during the verification of other events.

‡Includes six incident strokes identified during the verification of transient ischaemic attacks.