The study was a non-randomized controlled trial of 12-months' follow-up with 182 Spanish community pharmacists. Intervention community pharmacists received the CESAR training to improve their smoking cessation services, consisting of an initial interview and follow-up visits to identify obstacles and reinforce behaviours. The control group received the usual care. Data were self-reported and collected in a computerized health registration system. Outcomes were smoking cessation and quality of life (EuroQOL-5D) collected at baseline, 6 months', and 12 months' follow-up. Cost data were collected for the study period and included direct health costs, sick leave, and intervention costs. Smoking cessation was analysed through logistic regression models. Generalized linear models were carried out for quality-adjusted life year costs. Incremental cost-effectiveness ratios (ICERs) and cost-utility ratios (RCUI) were calculated. Sensitivity analyses were performed.

Inclusion Criteria:

• smoker over 18 years old
• consent to participate
• presence at the community pharmacy for one of three reasons (a) a medical prescription for a treatment to stop smoking, (b) a consultation about how to stop smoking, (c) asking if he/she smokes when he/she consults for associated symptoms or harm.

Exclusion Criteria:

• cognitive impairment
• drug uses
• pregnancy or lactation.

The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.