Diabetes Care, Vol 17, Issue 11 1320-1329, Copyright © 1994 by American Diabetes Association

ARTICLES

Hospital use among diabetic patients and the general population

S Aro, T Kangas, A Reunanen, M Salinto and V Koivisto
National Research & Development Centre for Welfare & Health, University of Helsinki, Finland.

OBJECTIVE--This register-based linkage study compared hospital use among diabetic and nondiabetic populations. The study focused on overall use, use by disease categories, and inpatient care caused by complications. RESEARCH DESIGN AND METHODS--The patient data were derived from the Hospital Discharge Register and the Central Drug Register in Finland. All drug-treated diabetic patients and discharges of patients in a 3-year period were included in the study. Hospital use was measured by inpatient days, mean length of stay, and discharge rate. RESULTS--Among diabetic patients were eligible for drug reimbursement, 14.2% had at least one hospital stay because of diabetes in a year, while 50.7% had at least one hospital stay for any cause. Only 12.4% of the nondiabetic population was hospitalized annually. Patients with diabetes as the principal diagnosis consumed about 3% of all inpatient days; patients who had diabetes either as the principal or as a subsidiary diagnosis used 8.3%; and people who were eligible for antidiabetic drug reimbursement used 13.3% of total inpatient days. Among diabetic children, the risk for hospitalization was 6.5 times higher than among nondiabetic children. With advancing age, causes other than diabetes increasingly dominated hospitalization among diabetic patients. Inpatient days because of cardiovascular diseases were 1.6-18 times more common among diabetic patients than among nondiabetic patients, depending on gender and age-group. Diabetic patients used many more hospital inpatient days than did the nondiabetic population for a number of other disease categories that are usually not related to diabetes. CONCLUSIONS--Hospital use among diabetic patients is substantially greater than that among the nondiabetic population, mainly because of cardiovascular and microvascular complications, but also because of diseases unrelated to diabetes.
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