A subset of data from Hall, Havassy, and Wasserman (1990) measuring the number of weeks of relapse to cocaine use in a sample of 104 former addicts released from an in-patient treatment program. In-patients were followed for up to 12 weeks or until they used cocaine for 7 consecutive days.
Format
A person-level data frame with 104 rows and 4 columns:
idIn-patient ID.
weeksThe number of weeks between an in-patient's release and relapse to cocaine use.
censorCensoring status.
needleBinary indicator for whether cocaine was ever used intravenously.
Source
Hall, S. M., Havassy, B. E., & Wasserman, D. A. (1990). Commitment to abstinence and acute stress in relapse to alcohol, opiates, and nicotine. Journal of Consulting and Clinical Psychology, 58, 175–181. https://doi.org/10.1037//0022-006x.58.2.175