A versatile test for equality of two survival functions based on weighted differences of Kaplan–Meier curves
A versatile test for equality of two survival functions based on weighted differences of Kaplan–Meier curves
With censored event time observations, the logrank test is the most popular tool for testing the equality of two underlying survival distributions. Although this test is asymptotically distribution free, it may not be powerful when the proportional hazards assumption is violated. Various other novel testing procedures have been proposed, which …