BACKGROUND: Use of alcohol is a major public health issue, representing the 7th largest burden of disease in the world. Workplaces offer a unique arena for health initiatives addressing alcohol use, where occupational health services (OHS) personnel play an important role. However, we do not know if the extent of such initiatives may be influenced by personal drinking attitudes among OHS personnel. Thus, the aim of the study was to explore how drinking attitudes among OHS personnel were associated wit their frequency of working with alcohol-related cases and with their views on alcohol prevention activities in the OHS. METHODS: The WIRUS project included a cross-sectional survey of attitudes and practices among OHS personnel (n=325) employe...