This option is not shown in the dialog box. Remarks and examples stata.com stptime computes and tabulates the person-time and incidence rate (formed from the number of failures divided by the person-time). If you use the by() option, this will be calculated by different levels of one ...
Calculate rate ratios with the Mantel–Cox method [ST] stptime — Calculate person-time, incidence rates, and SMR [ST] strate — Tabulate failure rates and rate ratios [ST] stset — Declare data to be survival-time data Stata, Stata Press, and Mata are registered trademarks of StataCorp ...