Table 3. A. Reclassification tables.
A. | |||||||
---|---|---|---|---|---|---|---|
Initial model | Updated model | Predicted probability according to initial model | |||||
0–0.25 | 0.25–0.5 | 0.5–0.75 | 0.75–1 | % reclassified | |||
SAPS II, original | SL1 | 0–0.25 | 13,341 | 134 | 3 | 0 | 1% |
0.25–0.5 | 4,529 | 723 | 50 | 0 | 86% | ||
0.5–0.75 | 2,703 | 1090 | 174 | 2 | 96% | ||
0.75–1 | 444 | 705 | 473 | 137 | 92% | ||
SL2 | 0–0.25 | 12,932 | 490 | 55 | 1 | 4% | |
0.25–0.5 | 4,062 | 1,087 | 142 | 11 | 79% | ||
0.5–0.75 | 2,531 | 1,165 | 258 | 15 | 93% | ||
0.75–1 | 485 | 775 | 448 | 51 | 97% | ||
SAPS II, refitted | SL1 | 0–0.25 | 20,104 | 884 | 30 | 2 | 4% |
0.25–0.5 | 894 | 1,426 | 238 | 9 | 44% | ||
0.5–0.75 | 18 | 328 | 361 | 62 | 53% | ||
0.75–1 | 1 | 14 | 71 | 66 | 57% | ||
SL2 | 0–0.25 | 19,221 | 1,667 | 124 | 8 | 9% | |
0.25–0.5 | 765 | 1,478 | 318 | 6 | 42% | ||
0.5–0.75 | 24 | 346 | 367 | 32 | 52% | ||
0.75–1 | 0 | 26 | 94 | 32 | 79% | ||
APACHE II, refitted | SL1 | 0–0.25 | 19,659 | 1,140 | 107 | 6 | 6% |
0.25–0.5 | 1,262 | 1,195 | 296 | 34 | 57% | ||
0.5–0.75 | 89 | 298 | 264 | 71 | 63% | ||
0.75–1 | 7 | 19 | 33 | 28 | 68% | ||
SL2 | 0–0.25 | 18,930 | 1,764 | 200 | 18 | 9% | |
0.25–0.5 | 1,028 | 1,395 | 345 | 19 | 50% | ||
0.5–0.75 | 50 | 333 | 309 | 30 | 57% | ||
0.75–1 | 2 | 25 | 49 | 11 | 87% |
B. | |||
---|---|---|---|
Super Learner 1 | Super Learner 2 | ||
SAPS II, original | cNRI | 0.088 95%CI: (0.050, 0.126) |
0.247 95%CI: (0.209, 0.285) |
IDI | −0.048 95%CI: (−0.055, −0.041) |
−0.001 95%CI: (−0.010, −0.008) |
|
SAPS II, refitted | cNRI | 0.295 95%CI: (0.257, 0.333) |
0.528 95%CI: (0.415, 0.565) |
IDI | 0.012 95%CI: (0.008, 0.017) |
0.060 95%CI: (0.054, 0.065) |
|
APACHE II, refitted | cNRI | 0.336 95%CI: (0.298, 0.374) |
0.561 95%CI: (0.524, 0.598) |
IDI | 0.029 95%CI: (0.023, 0.035) |
0.076 95%CI: (0.069, 0.082) |