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The NRI and IDI were used to assess reclassification performance and improvement in discrimination of prediction model
| NRI% | P value | IDI% | P value | |
|---|---|---|---|---|
| Training cohort | ||||
| Prediction model versus EBV DNA | 78.79 | < 0.001 | 16.06 | 0.003 |
| Validation cohort | ||||
| Prediction model versus EBV DNA | 18.11 | 0.593 | 3.88 | 0.113 |
NRI, net reclassification improvement index; IDI, integrated discrimination improvement index
