Abstract
Background This study explored the relationship between personality attributes and substance use disorder (SUD). Research has identified specific personality dimensions, such as neuroticism, psychoticism, antisocial personality traits, paranoia, and anxiety, as contributing factors on the way to the initiation, continuation, and relapse of SUD. Purpose To explore this connection, we examined the personality profiles of subjects with alcohol use disorder (AUD) and opioid use disorder (OUD). Methods A total of 928 subjects, 320 with AUD, 490 with OUD and 118 healthy controls (HC), in the age range of 16–65 years were recruited in the study. The Clinical Profile Sheet and the Multiphasic Personality Questionnaire (MPQ) were administered to HC and patients who fulfil the diagnostic criteria for substance dependence as defined by ICD-10 (WHO-1992). Results We found significant differences in personality profiles between individuals with OUD and AUD. Patients with AUD scored higher than OUD on the MPQ subscales for depression, mania, paranoia, and antisocial personality traits. All subscales of the MPQ showed elevated scores in subjects with SUD compared to HC. Conclusion Elevated scores on the MPQ subscales suggest that personality factors may contribute to the pattern of substance use and misuse in this cohort.
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