"In this study, the highest levels of comorbidity (six or more comorbid conditions) among veterans were observed among treatment seekers. However, only those with comorbid DUD [Drug Use Disorders] were significantly more likely to seek treatment for PTSD once potentially confounding factors were accounted for. It is of concern that, in the present sample, 32% of veterans with PTSD who did not seek treatment had 6+ comorbid conditions.

"A total of 720,987 individuals aged 12 and older with co-occurring mental health and substance use disorders were served in 2015 [Table 6.1a].

"• Among males who had co-occurring mental health and substance use disorders served in the 2015 reporting period, the most frequently reported diagnoses were depressive disorders and schizophrenia and other psychotic disorders (25 percent each); for females, they were depressive disorders (33 percent) [Table 6.1c].