Sociodemographic and clinical characteristics of patients presenting with first-episode psychosis and concurrent substance misuse

Aims: To determine the incidence of concurrent substance misuse among individuals entering first‐episode psychosis treatment, and examine whether patients with concurrent substance misuse differ on variables relevant to service planning. Methods: Consecutive patients (n = 376) were assessed using st...

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Bibliographic Details
Published in:Early intervention in psychiatry 2009-02, Vol.3 (1), p.75-79
Main Authors: Carr, Jason A.R., Norman, Ross G.M., Manchanda, Rahul
Format: Article
Language:English
Subjects:
Age Factors
Alcoholism - diagnosis
Alcoholism - psychology
Chi-Square Distribution
comorbidity
Diagnosis, Dual (Psychiatry) - psychology
Diagnosis, Dual (Psychiatry) - statistics & numerical data
dual diagnosis
early intervention
Female
Humans
Male
Marijuana Abuse - diagnosis
Marijuana Abuse - psychology
Psychiatric Status Rating Scales
Psychotic Disorders - diagnosis
Psychotic Disorders - psychology
schizophrenia
Sex Factors
Socioeconomic Factors
substance-related disorder
Substance-Related Disorders - diagnosis
Substance-Related Disorders - psychology
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Summary:Aims: To determine the incidence of concurrent substance misuse among individuals entering first‐episode psychosis treatment, and examine whether patients with concurrent substance misuse differ on variables relevant to service planning. Methods: Consecutive patients (n = 376) were assessed using standardized instruments. Results: Twenty‐two per cent met abuse or dependence criteria for a single substance, and 8% met criteria for two substances. Most met criteria for marijuana or marijuana and alcohol. The majority of patients with a concurrent disorder were male, and on average they were 3.5 years younger at psychosis onset. Patients with a concurrent disorder experienced worse ‘positive’ and anxiety symptoms in the month before treatment. Premorbidly they had better social functioning, but worse academic functioning. Conclusions: There are important differences between patients entering first‐episode psychosis treatment with and without a concurrent substance misuse. Early intervention efforts might be informed by our accumulating knowledge about the characteristics of patients who have both disorders.
ISSN:1751-7885
1751-7893
DOI:10.1111/j.1751-7893.2008.00100.x