Health Care Service Presence, Social Vulnerability, and Opioid Overdose Rate Acceleration: A United States, County-level Analysis, 2020-2022

Health Care Service Presence, Social Vulnerability, and Opioid Overdose Rate Acceleration: A United States, County-level Analysis, 2020-2022

Published: September/October 2026
Journal Article

Overview

This one-hour, journal article-based activity examines associations between social-environmental vulnerability (SEV), healthcare service presence, and opioid overdose rate acceleration across rural and urban communities in the United States. Learners will explore how vulnerability and geographic context are associated with differences in overdose trends and examine the relationship between the presence of opioid treatment programs (OTPs) and primary care providers (PCPs) services and overdose rate acceleration. The article also considers how healthcare service presence in high-vulnerability communities may inform strategies to address geographic and social disparities in opioid overdose outcomes. 

The target audience for this intermediate continuing education activity includes physicians, nurse practitioners, physician assistants, and other clinicians, researchers, students, and policymakers. 

This activity addresses the following ACGME Core Competencies: Medical Knowledge, Practice-Based Learning and Improvement, and Systems-Based Practice. 

Abstract

Aims 

The United States continues to experience an opioid overdose epidemic with mortality patterns that reflect existing social and environmental inequities. Although research has examined various factors associated with opioid-related mortality, the relationships between social-environmental vulnerability (SEV), health care presence, and geography remain poorly characterized. The purpose is to explore whether SEV accelerates opioid overdose rates and to assess how the presence of health care services—specifically opioid treatment programs (OTPs) and primary care providers (PCPs)—modifies these patterns across rural and urban contexts.

Methods

A retrospective ecological analysis using hierarchical linear modeling was conducted from January 2020 to December 2022, analyzing 172,359 observations across 57,453 census tracts within 1219 US counties. The primary exposure was census-tract-level SEV, operationalized using the CDC Environmental Justice Index. Healthcare indicators included county-level presence of OTPs and PCPs.

Results

Areas in the highest quartile of SEV demonstrated elevated acceleration coefficients (β=3.224; SE=0.803; P<.001), with pronounced patterns observed in rural areas, though ecological design limitations preclude individual-level causal inference. Interaction analyses suggested that high-SEV counties containing both OTP and primary care resources demonstrate lower acceleration coefficients (β= -11.478, SE=5.429, P=0.035). Areas without healthcare presence showed higher baseline rates in overdose acceleration, particularly in urban high-vulnerability settings.

Conclusion

High SEV was associated with accelerated opioid overdose rates during 2020-2022, particularly in rural areas. The presence of OTPs and primary care services within counties was associated with attenuated acceleration in high-vulnerability areas. This may indicate that policies prioritizing comprehensive health care services in high-SEV communities could address opioid overdose disparities.

Learning Objectives

Upon completion of this activity, learners will be able to:

1. Examine the association between SEV and opioid overdose rate acceleration in US communities. 
2. Compare patterns of opioid overdose rate acceleration across rural and urban communities with differing levels of SEV. 
3. Evaluate the association between healthcare service presence and opioid overdose rate acceleration in high-vulnerability communities. 

Registration Rates

*Residents, Fellows-in-training, Interns, and Students must join ASAM to receive a discounted registration rate. Click here to become an ASAM member. National and Chapter membership dues apply. There is no charge for Students to become a Member, but verification of student status is required.

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Refunds & Cancellations

All ASAM eLearning Center refund requests must be made in writing to [email protected] within 90 days of purchase. Those requesting refunds for courses that are in progress will receive partial refunds or eLearning Center credit. Automatic full refunds will be made for any course with a live-course component that has been canceled.

Open Registration: 10/01/2026 - 02/10/2029

Close Access Date: 02/10/2029

Course Instructions

1. Click on the Contents tab to begin this activity.
2. Click Download Journal Article in the box titled Journal Article and read the journal article in its entirety. 
3. Click Complete Post-Test to answer multiple-choice questions. You will have 10 attempts to pass and must answer 2 out of 3 questions correctly.
4. Click Complete Evaluation to provide valuable activity feedback. Scroll down on all questions, as there may be answer options that expand past the size of the window.
5. Click the button Claim Medical Credits in the box titled Claim Credits & Certificate. Choose the type of credit and click submit. Click the button View/Print Certificate to save or print your certificate. You can view/print your certificate at any time by visiting the ASAM eLearning Center, clicking Dashboard, and clicking Transcript/Achievements.

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Accreditation & Credits

Joint Accreditation Statement

In support of improving patient care, the American Society of Addiction Medicine is jointly accredited by the Accreditation Council for Continuing Medical Education (ACCME), the Accreditation Council for Pharmacy Education (ACPE), and the American Nurses Credentialing Center (ANCC), to provide continuing education for the healthcare team.

Credits Available

• Physicians: 1.00 Credit
• Nurses & NPs: 1.00 Nursing Contact Hour
• PAs: 1.00 Credit
• Interprofessional Continuing Education: 1.00 Credit
• Certified Counselors: NBCC Contact Hours Not Offered
   American Society of Addiction Medicine has been approved by NBCC as an Approved Continuing Education Provider, ACEP No. 7062. Programs that do not qualify for NBCC credit are clearly identified. American Society of Addiction Medicine is solely responsible for all aspects of the programs.

Maintenance of Certification (MOC)/Continuing Certification Program (CCP)

This activity is designed to meet the requirements for MOC/CCP for several primary physician boards and for state licensing CME requirements. MOC Credit is only reported and designated for ABA, ABP, ABIM, and ABS. By completing the online credit application and evaluation, the learner permits ASAM to report credits to the appropriate Board. Learn more.

• ABIM MOC Points: 1.00 Medical Knowledge
• ABP MOC: 1.00 Lifelong Learning & Self-Assessment
• ABS Continuing Certification: 1.00 Accredited CME
• ABA MOCA 2.0®*: 1.00 Lifelong Learning MOCA 2.0® is a trademark of the American Board of Anesthesiology®. This activity contributes to the CME requirement for Part II: Lifelong Learning and Self-Assessment of the American Board of Anesthesiology's (ABA) redesigned Maintenance of Certification in Anesthesiology Program® (MOCA®), known as MOCA 2.0®. Please consult the ABA website, https://www.theaba.org/, for a list of all MOCA 2.0 requirements.

Additionally, this activity has been designed to satisfy the requirements of the following primary physician board certification requirements. Please confirm with your individual Board.

• American Board of Preventive Medicine (ABPM)
• American Board of Psychiatry and Neurology (ABPN)
• Royal College of Physicians and Surgeons of Canada (RCPSC)

Certificates for other professions

All participants may request a certificate of participation upon completion of the activity and an online evaluation confirming their participation. Learners are strongly advised to contact their professional licensing board or professional association to confirm this certificate will be accepted as evidence supporting continuing education requirements.

Disclosure Information

In accordance with the disclosure policies of ASAM and Joint Accreditation, the effort is made to ensure balance, independence, objectivity, and scientific rigor in all accredited continuing education activities. These policies include identifying and mitigating all relevant financial relationships with ineligible companies for those involved in the creation and dissemination of accredited continuing education. 

See the attached article and pdf for a list of disclosures