From: On estimation for accelerated failure time models with small or rare event survival data
Binary covariate | Quartiles | True | MLE | Firth |
---|---|---|---|---|
X2=0 | 1st | 0.750 | 0.780 | 0.769 |
2nd | 0.500 | 0.543 | 0.529 | |
3rd | 0.250 | 0.294 | 0.278 | |
X2=1 | 1st | 0.750 | 0.757 | 0.751 |
2nd | 0.500 | 0.498 | 0.499 | |
3rd | 0.250 | 0.247 | 0.249 |