Study Debunks Myth: Depression Screen Accurate for Chronic Pain Patients

Study Affirms Reliability of Depression Screening for Chronic Pain Patients

In a significant breakthrough for mental health assessments, a recent study has dispelled the myth that chronic pain can skew depression screening results. This finding ensures that the commonly used screening tool, the Patient Health Questionnaire-8 (PHQ-8), remains effective for individuals with or without chronic pain.

Previously, there was concern among healthcare professionals that the PHQ-8 might overestimate depression in chronic pain sufferers due to overlapping symptoms like insomnia and fatigue. However, lead researcher Jennifer S. De La Rosa, affiliated with the U of A Comprehensive Center for Pain and Addiction, addressed this issue. “Could pain symptoms artificially inflate depression screening scores among those with chronic pain? It’s a reasonable question, but it had not yet been definitively answered,” stated De La Rosa, also a researcher at the U of A College of Medicine – Tucson.

The study, published in the Journal of Affective Disorders, analyzed data from nearly 32,000 U.S. adults sourced from the 2019 National Health Interview Survey. The research team applied advanced data science methods to ensure the PHQ-8’s fairness across different populations, confirming its reliability for all patients.

“Clinicians need to know that a positive depression screening is just as reliable in their patients with chronic pain as patients without chronic pain,” De La Rosa explained, emphasizing the importance of mental health support for all patients. The study also advocates for including chronic pain sufferers in depression treatment research, addressing a significant gap in current clinical trials.

The research highlights the intricate relationship between chronic pain and depression, echoing De La Rosa’s previous findings that a substantial number of individuals with chronic pain also experience depression. A subsequent study indicated that while chronic pain increases the likelihood of anxiety and depression, affected individuals are less likely to access adequate mental health care.

De La Rosa further emphasized, “People with chronic pain are, in fact, the most typical patients living with unmet mental health needs.” She advocates for their inclusion in mental health trials to improve treatment outcomes and address their unique challenges.

According to the Centers for Disease Control and Prevention, approximately 64 million adults in the U.S. are affected by chronic pain. The study’s co-authors include experts from the College of Information Science and other prestigious institutions, supported by the National Institutes of Health under award numbers K23HD104934 and K12TR005467-01.