Table 2.

Incidence of death by study group and hazard ratios for mortality in the ADDITION-Cambridge trial

	No-screening control group			Screening group			Hazard ratio (95%CI)*
	Number of deaths	Person-years of follow-up	Rate per 1000 person-years (95% CI)	Number of deaths	Person-years of follow up	Rate per 1000 person-years (95% CI)
All-cause mortality	377	38 126	9·89 (8·94–10·94)	1532	145 930	10·50 (9·99–11·04)	1·06 (0·90–1·25)
Cardiovascular mortality	124	38 126	3·25 (2·73–3·88)	482	145 930	3·30 (3·02–3·61)	1·02 (0·75–1·38)
Cancer mortality	169	38 126	4·43 (3·81–5·15)	697	145 930	4·78 (4·43–5·14)	1·08 (0·90–1·30)
Other causes of death	84	38 126	2·20 (1·78–2·73)	353	145 930	2·42 (2·18–2·68)	1·10 (0·87–1·39)

^*Accounting for clustering.