query: How to create a covariate × time interaction term in Cox regression?
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positive_passages.text: What’s wrong with this way of fitting time-dependent coefficients in a Cox regression?
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negative_passages.text: Is there a way to use the covariance matrix to find coefficients for multiple regression?
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negative_passages.text: Survival Analysis, Cox Regression in randomized trial vs. observational study and propensity score matching
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