Coffee and Cigarette use: Association With Suicidal Acts in 352 Sardinian Bipolar Disorder Patients

Retrospective analysis of demographic & clinical factors among 352 longitudinally assessed DMS-IV types I & II bipolar disorder patients contrasted patients with versus without consumption of nicotine or caffeine, based on univariate comparisons & multiple regression modelling. Current smoking & coffee drinking were common, & significantly & independently associated with suicidal acts. Risk increased with more smoking & greater coffee consumption. Neither intake was related to yearly rates of all episodes, depressions, or manias. Findings underscore the importance of monitoring the use of even legal & mildly psychotropic substances by bipolar disorder patients. (67 refs.) JA