Implications of mental and substance use disorders. A comparison of single and dual diagnosis patients.
To understand better the implications of co-occurring mental and substance use disorders, we examined DSM-III-R diagnoses and life problems among a representative sample of 314 patients admitted to either a psychiatric hospital or a residential substance abuse treatment program from the same inner-city catchment area. Based upon the Structured Clinical Interview for DSM-III-R, the patients were divided into four groups. The first two groups had dual diagnoses, either: a) a primary axis I mental disorder (MD) and a comorbid psychoactive substance use disorder (PSUD); or b) a PSUD-related mental disorder and a PSUD, but no primary axis I MD. The third and fourth groups had a single diagnosis, either: c) a primary axis I MD, but no lifetime PSUD; or d) a PSUD, but no lifetime primary axis I MD. As expected, the two dual disorder groups had more cumulative problems than did either of the single disorder groups. Dually disordered patients with PSUD-related MD most resembled single-diagnosis PSUD patients in terms of substance use profile and life problems. Dually disordered patients with primary MD more resembled single-diagnosis MD patients, but had more severe life problems. Presence of a PSUD was associated with male gender, antisocial personality disorder, and more severe legal problems. Presence of a primary mental disorder was associated with more extensive prior hospitalizations and greater psychiatric severity.
Department of Psychiatry, University of Maryland, Baltimore 21201.
A F
AF
Lehman
C P
CP
Myers
J W
JW
Thompson
E
E
Corty
D000293:Adolescent; D000328:Adult; D000368:Aged; D000987:Antisocial Personality Disorder / Q000175:diagnosis / Q000453:epidemiology; D015897:Comorbidity; D005260:Female; D006760:Hospitalization; D006778:Hospitals, Psychiatric; D006801:Humans; D008016:Life Change Events; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology*; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D012720:Severity of Illness Index; D012737:Sex Factors; D012926:Social Control, Formal; D016320:Substance Abuse Treatment Centers; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000453:epidemiology*; D009626:Terminology as Topic