Clinical and Psychological Profiles in Opioid Use Disorder vs Pain Management Patients

Overview

This study compared demographic and clinical characteristics of patients receiving opioid agonist treatment (OAT) for opioid use disorder with those taking low- and high-dose prescription opioids for chronic pain. Findings revealed that patients on OAT and high-dose opioids had more severe mental health symptoms and longer pain duration than those on low-dose opioids. Additionally, OAT patients exhibited greater multimorbidity, anxiety, and pain catastrophizing despite lower reported pain intensity compared to high-dose opioid users.

Background

Chronic pain affects approximately 31% of adults worldwide and is a leading cause of disability. In Australia, chronic pain-related healthcare visits have increased substantially, with significant economic impact. Opioid agonist treatments such as methadone and buprenorphine are first-line therapies for opioid use disorder but are also occasionally used for severe pain. Patients receiving OAT often experience complex clinical profiles including mental health issues and multimorbidity, which overlap with characteristics seen in patients prescribed opioids for pain management. Understanding these differences is critical for optimizing multidisciplinary pain management strategies.

Data Highlights

Key Findings

• Patients on opioid agonist treatment (OAT) and those on high-dose opioids both exhibit more severe mental health symptoms and longer pain duration compared to low-dose opioid users.
• Compared to high-dose opioid users, OAT patients report lower pain intensity but have higher odds of multimorbidity.
• OAT patients demonstrate more severe anxiety and greater pain catastrophizing thoughts than high-dose opioid users.
• Most patients in the study were female (56.8%) with a mean age of 51.7 years.
• The findings emphasize the complex clinical profiles of patients receiving OAT, including overlapping vulnerabilities with high-dose opioid users.

Clinical Implications

Clinicians should recognize the heightened mental health burden and multimorbidity among patients receiving opioid agonist treatment for opioid use disorder. Tailored multidisciplinary pain management approaches incorporating mental health interventions are essential for this population. Additionally, pain management guidelines should address the unique needs of patients on OAT to improve treatment outcomes.

Conclusion

This study highlights distinct clinical and psychological profiles among patients on opioid agonist treatment compared to those on prescription opioids for pain, underscoring the necessity for integrated, multidisciplinary care tailored to the complex needs of patients with concurrent pain and opioid use disorder.

References

1. Australian Health Services Research Institute/ePPOC Database/2023 -- Comparative Analysis of Clinical and Psychological Profiles in Patients Undergoing Opioid Use Disorder Treatment Versus Those on Low- and High-Dose Opioids for Pain Management