pharmacoSmoking: pharmacoSmoking
In asaur: Data Sets for "Applied Survival Analysis Using R""

Description Usage Format Source References Examples

Randomized trial of triple therapy vs. patch for smoking cessation.

1	data("pharmacoSmoking")

A data frame with 125 observations on the following 14 variables.

id: patient ID number
ttr: Time in days until relapse
relapse: Indicator of relapse (return to smoking)
grp: Randomly assigned treatment group with levels combination or patchOnly
age: Age in years at time of randomization
gender: Female or Male
race: black, hispanic, white, or other
employment: ft (full-time), pt (part-time), or other
yearsSmoking: Number of years the patient had been a smoker
levelSmoking: heavy or light
ageGroup2: Age group with levels 21-49 or 50+
ageGroup4: Age group with levels 21-34, 35-49, 50-64, or 65+
priorAttempts: The number of prior attempts to quit smoking
longestNoSmoke: The longest period of time, in days, that the patient has previously gone without smoking

This data is from a clinical trial described in Steinberg et al. (2009)

Steinberg, M.B. Greenhaus, S. Schmelzer, A.C. Bover, M.T., Foulds, J., Hoover, D.R., and Carson, J.L. (2009) Triple-combination pharmacotherapy for medically ill smokers: A randomized trial. Annals of Internal Medicine 150, 447-454.