Search | Search by Center | Search by Source | Keywords in Title
Higgins DM, Buta E, Heapy AA, Driscoll MA, Kerns RD, Masheb R, Becker WC, Hausmann LRM, Bair MJ, Wandner L, Janke EA, Brandt CA, Goulet JL. The Relationship Between Body Mass Index and Pain Intensity Among Veterans with Musculoskeletal Disorders: Findings from the MSD Cohort Study. Pain medicine (Malden, Mass.). 2020 Oct 1; 21(10):2563-2572.
OBJECTIVE: To examine the relationship between body mass index (BMI) and pain intensity among veterans with musculoskeletal disorder diagnoses (MSDs; nontraumatic joint disorder; osteoarthritis; low back, back, and neck pain). SETTING: Administrative and electronic health record data from the Veterans Health Administration (VHA). SUBJECTS: A national cohort of US military veterans with MSDs in VHA care during 2001-2012 (N = 1,759,338). METHODS: These cross-sectional data were analyzed using hurdle negative binomial models of pain intensity as a function of BMI, adjusted for comorbidities and demographics. RESULTS: The sample had a mean age of 59.4, 95% were male, 77% were white/Non-Hispanic, 79% were overweight or obese, and 42% reported no pain at index MSD diagnosis. Overall, there was a J-shaped relationship between BMI and pain (nadir = 27 kg/m2), with the severely obese (BMI 40 kg/m2) being most likely to report any pain (OR vs normal weight = 1.23, 95% confidence interval = 1.21-1.26). The association between BMI and pain varied by MSD, with a stronger relationship in the osteoarthritis group and a less pronounced relationship in the back and low back pain groups. CONCLUSIONS: There was a high prevalence of overweight/obesity among veterans with MSD. High levels of BMI ( > 27 kg/m2) were associated with increased odds of pain, most markedly among veterans with osteoarthritis.