Economic burden of type 2 diabetes mellitus management: Epidemiological determinants from a coastal community of Southern India

Expenditure on diabetes mellitus is increasing worldwide and is determined by multiple factors and knowledge about these factors may help to improve patient management and reduce health-care cost. The present study aims to determine the factors influencing the expenditure incurred by patients with type 2 diabetes mellitus (T2DM). A cross-sectional survey was conducted among 809 patients with T2DM from a coastal community in Southern India. Expenditure incurred for the management of T2DM in the previous year was collected using a predesigned survey tool. Duration of disease, source of diabetes care, presence of comorbidities, hospitalization, and adherence to medications were studied as potential cost predictors. Age, gender, education, occupation, and socioeconomic status as key determinants were evaluated. Expenditure incurred by patients with T2DM was estimated to be INR 5041 (2516-11,224) annually while the presence of comorbidities led to higher expenditure, INR 9133 (4034-19,053). Medication and hospitalization were the major drivers of direct cost. Subjects visiting private health facilities had a higher median cost with respect to diabetes-related care. Advancing age, male gender, high socioeconomic status, higher literacy, and longer duration of diabetes were identified as significant independent predictors of cost on multivariate analysis. The high cost of diabetes supports the need for strengthening public and private primary care facilities to provide standard care for diabetes.