In STATA, for those participants who were withdrawn from the study, do we treat these participants as 0 or 1 for censoring. For example, we have 5000 patients. 300 died, 50 were withdrawn from the study and the rest still not developing any events. However, we have time to event and time to withdraw. I am not sure in state should I treat 50 who withdrew from the study as . or 0 or 1. Thank you.
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