Table 1.
Harrell,s C-statistics, category-free net reclassification index, and integrated discrimination index of applying kidney failure risk equations in the current cohorts
| Models | Harrell,s C-statistics (95% confidence interval) | Net reclassification index (95% confidence interval) | Integrated discrimination index (95% confidence interval) |
|---|---|---|---|
| 2-year 4-variable model |
0.750 (0.615, 0.885) | NA | NA |
| 2-year 8-variable model |
0.766 (0.625, 0.907) | 0.002 (−0.137, 0.116) a | 0.279 (−0.156, 0.622) a |
| 5-year 4-variable model |
0.756 (0.629, 0.883) | NA | NA |
| 5-year 8-variable model |
0.774 (0.641, 0.907) | −0.001 (−0.129, 0.116) a | 0.136 (−0.251, 0.546) a |
The net reclassification index or integrated discrimination index comparing 2-year/5-year 8-variable model to 2-year/5-year 4-variable model was provided based on the 1,414 patients with complete data of the 8-variable model.