RÉSUMÉ
INTRODUCTION: Smoking cessation is a public health priority. Several prevention campaigns exist, including this one of the "month without tobacco", made in November in France. Healthcare workers have an important role to play in stopping smoking, while many of the healthcare workers are themselves smokers. The purpose of this article is to study the prevalence of tobacco consumption among hospital staff and to evaluate its effects. MATERIAL AND METHOD: It is a transversal study, carried out among the 734 agents of a French hospital, between December 2016 and January 2017, by anonymous self-questionnaires. The study included all hospital employees, whether they were caregivers or not. RESULTS: The participation rate was 35%, of whom 193 (75.7%) were health care workers, 46 (17.6%) were administrative and 17 (6.7%) were working in technical services. There were 31% smokers and 26% forming smokers. There were no significant differences in smoking by age, or socio-occupational category. During this campaign, 66.7% of smokers had plans to quit, and 29% tried to quit. CONCLUSION: The prevalence of smoking in this hospital was comparable to that of the general population, and among the highest in hospital in the literature. The campaign of the month without tobacco has influenced the consumption of smokers. Other studies need to analyze how to handle this population.