Problem Gambling and Psychiatric Comorbidity-Risk and Temporal Sequencing Among Women and Men: Results from the Swelogs Case-Control Study

It is well known that many problem gamblers also suffer from other psychiatric conditions. However, knowledge regarding the temporal sequencing of the conditions is lacking, as well as insight in possible gender specific patterns. The aim of this study was to examine the risk for psychiatric comorbidity among problem gamblers compared to non-problem gamblers in the general Swedish population, as well as the age of onset and the temporal sequencing of problem gambling and the comorbid psychiatric conditions among lifetime problem gamblers. A case-control study nested in the Swelogs cohort was used. For both the female and the male problem gamblers, the risk for having had a lifetime psychiatric condition was double or more than double compared to the controls. Having experienced anxiety or depression before gambling onset, constituted a risk for developing problem gambling for the women but not for the men. Further, the female cases initiated gambling after their first period of anxiety, depression and problems with substances, and problem gambling was the last condition to evolve. Opposite this, the male cases initiated gambling before any condition evolved, and depression and suicidal events emerged after problem gambling onset. There were large differences in mean age of onset between the female cases and their controls, this was not the case for the males. Gender specific patterns in the association between problem gambling and psychiatric comorbidity, as well as in the development of problem gambling needs to be considered in treatment planning as well as by the industry in their advertising.