Table 2

 Survival at 1–5 years

NoNo of deathsMean survival95% CI for survival
1 year21111.5710.75 to 12.39
2 years21322.5520.04 to 25.07
3 years21432.1228.09 to 36.14
4 years21441.3635.30 to 47.42
5 years21450.6142.30 to 58.91