Model |
AUC |
AIC |
I) Single linear term |
0.886 (0.882-0.889)* |
37 944 |
IIa) Dummy variables on 5 categories |
0.894 (0.891-0.897)* |
35 364 |
IIb) Dummy variables on 4 categories |
0.887(0.884-0.890)* |
35 799 |
IIc) Dummy variables on 3 categories |
0.876 (0.872-0.880)* |
37 729 |
IId) Binary variables |
0.854 (0.850-0.858)* |
39 594 |
III) FP |
0.901 (0.898-0.904) |
35 054 |
IV) GAM |
0.901 (0.898-0.905) |
34 948 |
FP: Fractional Polynomials, GAM: smoothing splines in a Generalized Additive
Model
*p<0.0001 when compared to the generalized additive model |