Patients and methods: We performed a descriptive cross-sectional monocentric study among all workers who consulted one physician between November 2016 and April 2017, from an occupational health service in Brittany, France. The first step was to ask whether they have gambled during the last year and if it was related to their occupation. The second step was a screening for risky gamblers (using the "Lie or Bet" questionnaire) among these and then to assess more precisely the severity (using the Indice Canadien du Jeu Excessif, ICJE questionnaire).