Figure 1From: Testing the proportional hazards assumption in case-cohort analysis Log of ratio of hazards functions between two categories of a binary exposure variable under various of simulated non PH scenarios of non PH listed in Table 1 . Black line represents non-monotonic hazard functions and non PH; orange line represents increasing hazards and non PH; red line represents decreasing hazards and non PH; blue line represents one constant and one increasing hazards and non PH.Back to article page