Table 3 Monte Carlo Results: Estimation of recurrence of adenomas at three years (true recurrence rate: 0.495) under a situation of independent censoring with five auxiliary variables.
From: Estimation of colorectal adenoma recurrence with dependent censoring
Method | Esta | Bias | SDb | SEc | CRd |
|---|---|---|---|---|---|
λ
e= 0.12; | |||||
NPMLE | 0.501 | 0.006 | 0.0405 | 0.0404 | 93.8 |
KM | 0.485 | -0.010 | 0.0371 | 0.0381 | 94.2 |
Logit | 0.417 | -0.078 | 0.0339 | 0.0348 | 36.6 |
WLogit | 0.490 | -0.005 | 0.0375 | 0.0391 | 96.2 |
WKMr+c(4,1) | 0.482 | -0.013 | 0.0369 | 0.0375 | 94.4 |
WKMr(4) | 0.480 | -0.015 | 0.0366 | 0.0372 | 94.4 |
WKMc(4) | 0.484 | -0.011 | 0.0368 | 0.0380 | 94.6 |
λ = 0.17; p ec = 0.40; early censoring rate = 30.5%; |r| = 0.36 | |||||
NPMLE | 0.501 | 0.006 | 0.0429 | 0.0431 | 94.0 |
KM | 0.481 | -0.014 | 0.0383 | 0.0394 | 93.6 |
Logit | 0.390 | -0.105 | 0.0337 | 0.0344 | 13.0 |
WLogit | 0.489 | -0.006 | 0.0392 | 0.0407 | 94.0 |
WKMr+c(4, 1) | 0.477 | -0.018 | 0.0380 | 0.0385 | 92.6 |
WKMr(4) | 0.474 | -0.021 | 0.0377 | 0.0380 | 91.8 |
WKMc(4) | 0.480 | -0.015 | 0.0376 | 0.0392 | 94.0 |
λ = 0.23; p ec = 0.50; early censoring rate = 38.3%; |r| = 0.37 | |||||
NPMLE | 0.506 | 0.011 | 0.0460 | 0.0465 | 94.8 |
KM | 0.480 | -0.015 | 0.0403 | 0.0409 | 94.6 |
Logit | 0.363 | -0.132 | 0.0340 | 0.0339 | 2.4 |
WLogit | 0.491 | -0.004 | 0.0414 | 0.0426 | 95.6 |
WKMr+c(4,1) | 0.474 | -0.021 | 0.0395 | 0.0396 | 90.6 |
WKMr(4) | 0.471 | -0.024 | 0.0387 | 0.0391 | 89.8 |
WKMc(4) | 0.478 | -0.017 | 0.0392 | 0.0406 | 94.0 |
= 0.30; early censoring rateg= 23.0%; |r
h| = 0.35