Table 2.
Kaplan-Meier estimates of probability of survival within defined time intervals after the index stroke
| 1 day to 30 days | 1 to 6 months | 6 m to 1 year | 1-2 years | 2-3 years | |
|---|---|---|---|---|---|
| Risk of death %* | 21.6 | 2.9 | 4.9 | 4.8 | 3.2 |
| CI 95% | (17.7-25.9) | (1.4-5.4) | (2.7-7.9) | (2.7-7.9) | (1.5-6.0) |
| Cumulative risk, % | 21.6 | 24.1 | 27.8 | 31.2 | 33.4 |
| CI 95% | (17.7-25.9) | (20.0-29.0) | (24.5-32.3) | (26.7-36.0) | (28.9-38.3) |
| Number at risk | 407 | 319 | 309 | 294 | 280 |
| Number of deaths | 88 | 10 | 15 | 14 | 9 |
| Cumulative deaths | 88 | 98 | 113 | 127 | 136 |
*Risk of death = (1-Kaplan-Meier estimate).