LAUSR

BACKGROUND Little is known about the prevalence of multimorbidity among middle-aged veterans. Multimorbidity holds implications for planning for a population with high health care utilization, poor quality of life and marked need for interdisciplinary care. METHODS The current study used the US 2017 Behavior Risk Factor Surveillance System to measure multimorbidity in three ways: (1) reporting two or more health conditions, (2) reporting two or more conditions controlling for demographic characteristics (e.g. income) and health risk behaviors (e.g. smoking) and (3) a weighted index using health-related quality of life. RESULTS After age 25, veterans' risk for multimorbidity increased across all age groups. The increased odds of reporting multimorbidity was highest when comparing veterans aged 35-44 to non-veterans of the same ages. Veterans aged 35-44 are 50% (adjusted odds ratios (AOR) 1.50, 95% confidence interval (CI) 1.16, 1.94) to 80% (AOR 1.80, 95% CI 1.46, 2.23) more likely to report multimorbidity when compared with same aged non-veterans. CONCLUSIONS Younger veterans may benefit from comprehensive interdisciplinary services to aid in the treatment of multiple medical conditions. Failure to account for the impact of chronic conditions on quality of life may lead to an underestimate of the health care needs of veterans across the lifespan.