Survival Data Analysis with Time-Dependent Covariates Using Generalized Additive Models

Table 3

Test of significance for the covariates (𝑃 values).

Covariates	Variant 𝑣-fold CV	GCV
Time	0.263	0.0028
Age	<0.0001	<0.0001
Prothrombin time	<0.0001	<0.0001
Bilirubin	<0.0001	<0.0001