Survival analysis, part 3: Cox regression

Another approach to analyze survival data is to use regression analysis. This can be accomplished by applying Cox regression, which allows us to calculate a special form of rate ratios known as hazard ratios.1 Therefore, instead of just a P value provided by the log-rank test, we can obtain an effect estimate with its confidence intervals, and at the same time we can adjust for other categorical or continuous covariates and interactions.

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