Table 3.

Survival by follow-up period of the out-of-hospital cardiac arrest cohort.

Follow-up year	Population at risk	Deaths	Proportion surviving	95% CI
1	675	127	0.84	0.81	0.87
2	539	50	0.78	0.75	0.80
3	414	23	0.74	0.71	0.77
4	296	13	0.71	0.68	0.75
5	196	11	0.68	0.65	0.72
6	129	5	0.66	0.62	0.70
7	89	3	0.65	0.60	0.69
8	49	2	0.62	0.57	0.67
9	26	0	0.62	0.57	0.67
10	3	0	0.62	0.57	0.67

95% CI: 95% confidence interval.