Comorbidity, Criminality, and Costs of Patients Treated for Gambling Disorder in Denmark.

Gambling disorder is associated with increased mental comorbidity, unhealthy lifestyle, criminality, and costs-of-illness, but the available evidence is mainly based on self-reported survey data. We examined the registry-recorded mental and somatic comorbidities, medication use, criminality, and costs-of-illness associated with gambling disorder. We identified individuals diagnosed with or treated for gambling disorder in hospitals or specialized treatment centers during 2013-2017 and matched them by age and sex to general population comparisons. Using individual-level healthcare and socioeconomic registries, we characterized their history of mental and somatic comorbidities, medication use, and criminality. We estimated their cost-of-illness of welfare services (direct) and lowered productivity (indirect) using the human capital approach. We identified 1381 individuals with gambling disorder, primarily young (median age: 34 years) men (87%). Individuals with gambling disorder more frequently than their comparisons had previous hospital-recorded comorbidity [e.g., myocardial infarction (0.8% vs. 0.5%)], medication use [e.g., respiratory system drugs (35.6% vs. 28.6%)], and hospital-recorded or pharmacologically treated mental comorbidity [e.g., depression (39.8% vs. 14.9%)]. Also, sentenced criminality was much more common in individuals with gambling disorder (7.0%) than in comparisons (1.1%). The estimated attributable direct costs were €4.0 M corresponding to €2.9 K per person with gambling disorder, and attributable indirect costs were €17.6 M, corresponding to €13.2 K per person with gambling disorder in 2018. In conclusion, individuals diagnosed with or treated for gambling disorder have a high burden of mental and somatic comorbidities as well as criminality compared with the general population. This needs attention to minimize the societal and personal costs of gambling disorder.

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