he continuous confounders. It is recommended to use one of the other methods implemented in this package in that case. The method works exactly as desribed in Cupples et al. (1995). First, stratified Kaplan-Meier estimates for each possible combination of all supplied variables (<code>variable</code> + <code>adjust_vars</code>) are calculated. If for example a dichotomous <code>variable</code> with the levels "Treatment" and "Control" is supplied in conjunction with a single dichotomous confounder "Sex" wit