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Ranking of scoring systems by C-index*
| Patient cohort | Scoring system | C-index (95% CI) | P† |
|---|---|---|---|
| Training cohort (n = 310) | IGF-CTP score | 0.608 (0.606 to 0.610) | .003 |
| CTP score | 0.573 (0.71 to 0.575) | ||
| Validation cohort (n = 155) | IGF-CTP score | 0.672 (0.666 to 0.677) | .005 |
| CTP score | 0.579 (0.576 to 0.583) |
* CI, confidence interval; CTP = Child-Turcotte-Pugh; IGF = insulin-like growth factor.
† U-statistics were used to calculate P values, and all P values were two-sided.
