The relationship between expressed emotion, personality traits and prognosis of alcohol and substance addiction: 6-month follow-up study.

AIM: Preventing relapses in addiction and related factors are still being investigated. There is inadequate data, specifically, on the effects of expressed emotion (EE) among key relatives of patients with alcohol and substance use disorder (ASUD), the personality traits of patients, and the clinical features of addiction on relapses. MATERIAL AND METHOD: This study was conducted with patients with ASUD (n = 102, 98 male) and their relatives (n = 102, 44 male). The Dependency Profile Index, and the Temperament and Character Inventory were applied to the patients, while the EE scale was applied to key relatives. Relapse rates were evaluated six months later. RESULTS: EE levels among key relatives of patients were found to be associated with early relapse rates (p = 0.002). In addition, the individuals the patients lived with (p = 0.041), income level (p = 0.048), working status (p = 0.039), time spent in profession (p = 0.007), and severity of addiction (p = 0.016) were all found to be significantly associated with relapses. The personality traits of patients were not related to early relapses. In logistic regression analysis, EE and time spent in a profession were found to be significantly associated with relapses (p = 0.014, 0.043 respectively), while other variables were not significant. CONCLUSION: The relationship between relapse in the early period of abstaining from substance use and EE levels of key relatives seems to be a greater determinant for ongoing success than several other variables in patients with ASUD, including addiction severity. The research suggests that families be involved in programs that help prevent relapses.