Table 2.

Primary Psychiatric Diagnosis by Study Group (n = 153)

Psychiatric Diagnosis	Psychiatric Controls	Opioid Users	Normal Controls
Attention-Deficit/Hyperactivity Disorder (ADHD)	0	2	-
Anxiety	0	1	-
Bipolar Disorder	19	17	-
Unspecified Bipolar Disorder	0	1	-
Unspecified Depressive Disorder	1	6	-
Major Depressive Disorder	33	27	-
Neurological Disorder	0	1	-
Obsessive Compulsive Disorder (OCD)	0	2	-
Eating Disorder	0	1	-
Posttraumatic Stress Disorder (PTSD)	0	1	-
Schizophrenia	0	3	-
Substance Use Disorder (SUD)	0	10	-
Total (153)	53	72	28

Note. Two samples (one opioid user, one psychiatric control) were later removed due to mismatching predicted and observed sex, and five psychiatric controls were removed due to positive opioid tests in toxicology reports.