Factors and motivations associated with use of e-cigarette among primary care patients in a prospective cohort study: e-TAC study protocol

Abstract Introduction: While the relationship between electronic cigarette use and smoking has often been studied, the association between electronic cigarette use and socioeconomic factors has received less attention. This is a study protocol aiming to describe the relationship between the consumption of psychoactive products (in particular: smoking) or some socioeconomic factors and the evolution of the use of electronic cigarette in primary healthcare over 1 year. Methods and analysis: Electronic cigarette, Tobacco, Alcohol and Cannabis (e-TAC) is a prospective multisite