Association of Additional Health Risks on Medical Charges and Prevalence of Diabetes within Body Mass Index Categories

Purpose.The prevalence of obesity and diabetes continues to increase among employee populations. Although medical costs and the prevalence of diabetes have been studied across increasing body mass index (BMI) categories, little attention has been given to the association of additional health risks within those categories. The purpose of this study was to examine the association of health risk levels on medical charges and prevalence of diabetes across BMI categories within an employee population.Methods.A cross-sectional study design utilized health risk appraisal data (30% response rate) to measure BMI levels, self-reported diabetes status, and selected additional health risks among 38,841 active employees under age 65 of the General Motors Corporation. Associated average annual medical charges from 1996 to 2000 were calculated for defined health risk levels across five BMI categories (<18.5; 18.5–24.9, 25–29.9, 30–34.9, and ≥35).Results.Higher medical charges were significantly associated with additiona...