Does Pain Explain Trends in Disability? An Analysis of Middle-Aged and Older US Adults, 2002-2018.

Abstract

This article investigates the role of pain in disability trends in the United States, within the context of recent unfavorable disability trends and the concurrent rise in pain. We conducted a two-part analysis using National Health Interview Survey data from 2002 to 2018 for US adults aged 45-84. First, we assessed how changes in the prevalence of five site-specific types of pain (headaches/migraines, joint, low back, neck, and facial/jaw pain) associate with disability trends. Second, we used self-reported causes of disability and examined whether there has been a change in the proportion of individuals who attribute their disability to one of five chronic or acute painful conditions. The five site-specific types of pain, individually and collectively, were significantly associated with increases in disability. If site-specific chronic pain had not increased during the study period, the trend for functional limitations would have been 40% lower, and that for activity limitations would have shown a slight decline instead of an increase. Attributions of functional limitations to painful conditions increased by 23% during the 2002-2018 period, representing an additional 9.82 million Americans experiencing pain-attributable disability. Arthritis/rheumatism, back/neck problems, and other musculoskeletal/connective conditions were the primary sources of pain-related disability. Our research provides the first systematic, national examination of how pain is contributing to disability trends in the United States. The findings have implications for disability reduction policies and shed light on the far-reaching consequences of pain for overall population health.