Changes from DSM-IV to DSM-5 criteria for gambling disorder appeared to result in a slight decrease in the rates of co-occurring mood and anxiety disorders. The rate for any co-occurring disorder was 56.7% among gamblers meeting DSM-IV criteria. It was 53.7% using DSM-5 criteria. This decrease brought the rate closer towards those seen in alcohol (25.3%) and cannabis (37.7%) disorders. However, co-occurring mental health disorders were still more common among people with gambling disorder than those with substance use disorders.