Concerns About Medication and Medication Use in Chronic Pain
Received 19 November 2005; received in revised form 23 February 2006; accepted 28 February 2006. published online 09 May 2006.
Abstract
This report describes a study of how patients view their pain medications. Two hundred and twenty patients with chronic pain completed a set of 78 items regarding beliefs and concerns about pain medication, a brief measure of medication use, and measures of depression and disability. Item and scale analyses resulted in a 47-item measure, the Pain Medication Attitude Questionnaire (PMAQ), that assesses 7 areas of patient concern: addiction, perceived need, unfavorable scrutiny by others, adverse side effects, tolerance, mistrust in the prescribing doctor, and withdrawal. These seven scales had excellent internal consistency and predictable relations with the measures of medication use, depression, and disability supporting their validity. Correlation analyses highlighted relatively strong associations between concerns about medication and measures of emotional distress and disability, suggesting that these concerns may add significantly to the burden of chronic pain. We suggest that concerns about medication use warrant further study and may deserve clinical attention.
Perspective
All medication use by chronic pain sufferers is essentially a pattern of patient behavior over time. As such, it appears to be multiply-determined, by beliefs, emotions, bodily sensations, and the social, cultural, and personal learning history that give these experiences their meaning and functions.
Pain Management Unit, Royal National Hospital for Rheumatic Diseases & University of Bath, Bath, United Kingdom.
Address reprint requests to: Lance McCracken, PhD, Pain Management Unit, Royal National Hospital for Rheumatic Diseases, Bath BA1 1RL, UK
This research was financially supported by The Royal National Hospital for Rheumatic Diseases Charitable Funds, a Napp Pharmaceuticals Unrestricted Grant Award, and The Bath Institute for Rheumatic Diseases.