Chunk #16 — Methods — RQ3: differences in smoking and smoking cessation attempt characteristics among past-year smokers between drinkers who are or are not at risk of alcohol dependence
Unweighted data were used to compare differences in smoking and smoking cessation attempt characteristics between drinkers who are versus are not at risk of alcohol dependence. Smoking and smoking cessation attempt characteristics were modelled as the outcome in a series of (linear, logistic or multinomial logistic, as appropriate) regression models with risk of alcohol dependence as a predictor, adjusted for survey year (using splines as for RQ1 and 2). For the multinomial logistic regression models, we present the relative risk ratio (RRR) of the coefficient which indicates how the risk of the outcome (categorical variable with more than two values: time to first cigarette and time since start of most recent quit attempt) in the comparison group compared with the reference group changes with the predictor variable (drinkers who are versus are not at risk of alcohol dependence).
