Skip to main content

Table 3 Results simulation study IIa, maximum likelihood logistic regression only

From: No rationale for 1 variable per 10 events criterion for binary logistic regression analysis

EPV 15 to 30 35 to 50 55 to 150
Separated data removed Yes No Yes No Yes No
Bias       
Average bias -0.097 2.255 0.083 0.161 0.051 0.053
max 0.091 7.074 0.127 0.439 0.084 0.096
min -0.556 0.234 0.050 0.056 0.048 0.022
Average relative bias (%) -0.087 2.110 0.079 0.145 0.048 0.049
max 0.091 5.103 0.095 0.317 0.061 0.069
min -0.401 0.338 0.069 0.081 0.032 0.032
Coverage 90% CI       
Average coverage (%) 92.7 93.4 89.1 89.1 90.4 90.4
max 98.3 98.8 90.6 90.6 91.8 91.8
min 89.7 89.8 87.9 87.9 89.2 89.2
> ± 1% nominal (%) 75 75 50 37.5 25 25
Average width 4.087 4437.2 2.656 49.2 2.005 2.645
Mean Square Error       
Average MSE 1.251 64.571 0.709 2.243 0.397 0.422
Separated data sets       
Total (%) 13.2 4.2 0.006