期刊
SCHIZOPHRENIA BULLETIN
卷 -, 期 -, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/schbul/sbad013
关键词
first episode psychosis; stimulant use; amphetamines; methamphetamine; population attributable fractions
类别
Illegal stimulant use is associated with an increased risk of psychotic disorder, particularly in first-episode cases. This study examines the patterns of stimulant use and their impact on the odds of first-episode psychosis (FEP) across multiple European countries and Brazil.
Background Use of illegal stimulants is associated with an increased risk of psychotic disorder. However, the impact of stimulant use on odds of first-episode psychosis (FEP) remains unclear. Here, we aimed to describe the patterns of stimulant use and examine their impact on odds of FEP. Methods We included patients with FEP aged 18-64 years who attended psychiatric services at 17 sites across 5 European countries and Brazil, and recruited controls representative of each local population (FEP = 1130; controls = 1497). Patterns of stimulant use were described. We computed fully adjusted logistic regression models (controlling for age, sex, ethnicity, cannabis use, and education level) to estimate their association with odds of FEP. Assuming causality, we calculated the population-attributable fractions for stimulant use associated with the odds for FEP. Findings Prevalence of lifetime and recent stimulant use in the FEP sample were 14.50% and 7.88% and in controls 10.80% and 3.8%, respectively. Recent and lifetime stimulant use was associated with increased odds of FEP compared with abstainers [fully adjusted odds ratio 1.74,95% confidence interval (CI) 1.20-2.54, P = .004 and 1.62, 95% CI 1.25-2.09, P < .001, respectively]. According to PAFs, a substantial number of FEP cases (3.35% [95% CI 1.31-4.78] for recent use and 7.61% [95% CI 3.68-10.54] for lifetime use) could have been prevented if stimulants were no longer available and the odds of FEP and PAFs for lifetime and recent stimulant use varied across countries. Interpretation Illegal stimulant use has a significant and clinically relevant influence on FEP incidence, with varying impacts across countries.
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