Psychiatric comorbidities in substance use disorders: Sex-based differences in a national real-world clinic sample
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Objective
Substance use disorders (SUD) are associated with risk of psychiatric comorbidities, with inconsistent sex differences, across studies. The objective of this study is to determine odds of psychiatric comorbidities based on sex, in persons with either primary opioid, alcohol or cannabis dependence diagnoses, from a national clinical data set.
Methods
This is a cross-sectional study of data from state-funded and state-run mental health programs in 2022 (Mental Health Client-Level Data, from the US Substance Abuse and Mental Health Administration). Data was obtained from adults (age ≥18) with a primary diagnosis of either opioid (n=28,808), alcohol (n=23,281) or cannabis dependence (n=5,961). Individuals with each SUD were examined for psychiatric comorbidity outcomes, based on secondary diagnoses of either anxiety, bipolar, depression, schizophrenia or other psychotic disorders (SPD), or trauma and stressor-related disorders, versus no comorbidity. Data were analyzed with multinomial logistic regressions, examining sex, race, ethnicity and age as predictors.
Results
Males with primary diagnoses of either opioid, alcohol or cannabis dependence had lower adjusted odds of anxiety, bipolar, depression and trauma/stressor disorders, compared to females. However, males with opioid or cannabis dependence had higher adjusted odds of SPD, compared to females. Adjusted analyses also detected associations of race and ethnicity with specific comorbidities.
Conclusions
In this recent national clinical data set, there are specific sex-based differences in specific psychiatric comorbidities for each of these three SUDs. Future studies should examine biopsychosocial mechanisms that underlie these differences, with the goal of improving personalized care.
