Related Experiment Video
Updated: Aug 19, 2026

Administration of Δ9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
Published on: August 1, 2025
Healthcare utilization among adults with co-occurring substance use and mental health disorders (2019-2023): A study
Abdul-Hanan Saani Inusah1, Muyang Wu1, Zoey Babyak1
1Department of Health Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA; South Carolina SmartState Center for Healthcare Quality, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA.
Background:
Co-occurring substance use and mental health disorders (COD) are common, yet healthcare utilization patterns remain understudied. This study examined healthcare utilization patterns and sociodemographic and structural correlates among adults with COD in the All of Us Research Program (2019-2023).
Methods:
Electronic health record data from the All of Us Research Program were analyzed for adults with COD. Healthcare utilization outcomes were assessed from 2019 to 2023 and categorized into counseling and therapy, medication/somatic services, telehealth services, and other supportive services. Multivariable logistic regression examined sociodemographic and structural correlates of healthcare utilization, including interaction effects between income, disability status, and insurance type.
Results:
Among 11,238 participants, 32.9% received at least one documented substance use disorder- or mental health disorder-related healthcare service. Counseling and therapy accounted for the largest share of encounters, while telehealth utilization surged during the COVID-19 pandemic. Healthcare utilization increased with age (≥65 years: aOR=2.24, 95% CI:1.86-2.70) and was lower among female participants (aOR=0.72, 95% CI:0.67-0.79). Significant interaction effects indicated that the relationship between insurance coverage and healthcare utilization varied across income and disability subgroups. Participants with higher income combined with private or multiple insurance coverage demonstrated some of the highest odds of healthcare utilization.
Conclusions:
Healthcare utilization among adults with COD remained low and reflected persistent structural inequities across income, disability, and insurance subgroups. Findings highlight the importance of strengthening integrated healthcare services, improving equitable access to care, and sustaining telehealth infrastructure to support long-term engagement in care.
Related Concept Videos
Substance Use Disorders Affecting Sleep
Understanding the concepts of physical dependence,...
Stress and Mental Health
Individuals with depression often experience challenges in both their personal and professional...
Drug Dependence
Community Based Intervention
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
Healthcare Agencies II
Parish nursing is a growing specialty nursing profession that focuses on holistic healthcare, health promotion, and illness prevention. It blends professional nursing practice with a health ministry, focusing on health and healing within the context of a Christian community. Parish nurses serve as health educators, referral sources, and lay...
Drug Abuse and Addiction: Pharmacological Phenomena
