So the proportional hazards assumption is rejected 2

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Unformatted text preview: d be roughly constant. 42/45 Actuarial Statistics – Module 3: Semi-parametric methods: Cox Regression Model Diagnostics for the Cox regression model Example Comparing the difference in disease-free survival between patients given an autologous (auto) and allogeneic (allo) bone marrow transplant for acute leukemia. There is only a single covariate Z taking a value 1 if the patient has an auto transplant and 2 if the patient had an allo transplant. We will consider two plots: ˆ 1 (11.5) logarithm of Log Cumulative...
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