Tobacco Smoking (1 item): participants rated the item “Within the last three months, how often did you smoke? (cigarettes,
pipes, cigarillos, cigars)” on a 3-point response scale: ‘daily’, ‘occasionally’, and ‘never’. Students reporting to be smokers were further asked: “Have you tried to quit smoking within the last 12 months?”, scored with dichotomous ‘Yes’/‘No’ response.