Impact of tobacco, alcohol and cannabis use on treatment outcomes among patients experiencing first episode psychosis: Data from the national RAISE‐ETP study

• DOI: 10.1111/eip.12542
• Publication Date: 2018-01-22T15:26:36Z
• Authors: Oladunni Oluwoye; Maria Monroe‐DeVita; Ekaterina Burduli; Lydia Chwastiak; Sterling McPherson; Jon M. McClellan; Michael G. McDonell
• Keywords: Adult; Male; Adolescent; Alcohol Drinking; Marijuana Smoking; 16. Peace & justice; Severity of Illness Index; 3. Good health; Tobacco Use; Young Adult; 03 medical and health sciences; Treatment Outcome; 0302 clinical medicine; Psychotic Disorders; Early Medical Intervention; Quality of Life; Humans; Patient Compliance; Female

AimThe primary aim of this study was to examine the effect of recent tobacco, alcohol and cannabis use on treatment outcomes among participants experiencing first episode psychosis (FEP).MethodsSecondary data analyses were conducted on 404 participants enrolled in the Recovery After an Initial Schizophrenia Episode—Early Treatment Program (RAISE‐ETP) study. RAISE‐ETP investigated the effectiveness of a coordinated specialty care (CSC) intervention for FEP in community mental health agencies in the United States. Generalized estimating equations were used to examine whether recent tobacco smoking, alcohol, and cannabis use at baseline were associated with illness severity, number of antipsychotic pills missed, psychiatric symptoms and quality of life during the 24‐month treatment period, after controlling for duration of untreated psychosis and treatment group.ResultsAt baseline, roughly 50% (n = 209) of participants reported recent tobacco, 28% (n = 113) alcohol and 24% (n = 95) cannabis use. Tobacco smokers had higher levels of illness severity (β = .24; P < .005), a higher number of missed pills (β = 2.89; P < .05), higher psychiatric symptoms and lower quality of life during treatment relative to non‐smokers. Alcohol users had a higher number of missed pills (β = 3.16; P < .05) during treatment and cannabis users had higher levels of illness severity (β = .18; P < .05) and positive symptoms (β = 1.56; P < .05) relative to non‐users.ConclusionsTobacco, alcohol and cannabis use are common in youth seeking treatment for FEP. Tobacco smoking was associated with more negative clinical outcomes. These findings have implications for including interventions targeting these areas of substance use within current CSC models.