Test of Proportional Hazards

Figure 1. Overall test of proportional hazards
Overall test of proportional hazards
Figure 2. Parameter estimates for alternative model
Parameter estimates for alternative model

The significance value for the overall test of proportional hazards is less than 0.05, indicating that the proportional hazards assumption is violated. The log time function is used for the alternative model, so it will be easy to replicate this time-dependent predictor.

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