![]() SURVT - The time in days until the patient dropped out of the clinic or was censored (missing information). In the addicts dataset, the variables are defined as: The patient’s survival time (in days) is the amount of time the patient spent at the clinic before dropping out. A 1991 Australian study by Caplehorn et al. compared two methadone clinics for heroin addicts. ![]() This information is from the Survival Analysis - A Self Learning Text (3rd Edition, 2012). dta file or a STATA file so the haven package in R is needed to deal with this file type. ![]() This addicts dataset can be downloaded from the website.
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