Table 5. C-statistics for survival and independence.
| SSVMod | NIHSSMod | Test for equality | |||||
|---|---|---|---|---|---|---|---|
| C-statistic | 95% CI | n | C-statistic | 95% CI | n | p value | |
| 30-day survival | |||||||
| total | .816 | .794, .838 | 8003 | .837 | .815, .858 | 8003 | .001 |
| 100-day survival | |||||||
| total | .802 | .784, .820 | 8003 | .823 | .806, .840 | 8003 | < .001 |
| 3-month-independence | |||||||
| total (1) | — | — | — | .728 | .714, .741 | 5373 | — |
| total (2) | .735 | .722, .748 | 5373 | .728 | .714, .741 | 5373 | .160 |
| 6-month independence | |||||||
| total (1) | .725 | .712, .739 | 5667 | — | — | — | — |
| total (2) | .725 | .712, .739 | 5667 | .731 | .718, .745 | 5667 | .242 |
(1) Estimate using all available data
(2) Estimate using pairwise deletion. CI = confidence interval.