Diabetes Care, Vol 22, Issue 4 575-579, Copyright © 1999 by American Diabetes Association

ARTICLES

Glycemic control in patients with diabetes in Finland

T Valle, VA Koivisto, A Reunanen, T Kangas and A Rissanen
Department of Epidemiology and Health Promotion, National Public Health Institute, Helsinki, Finland. timo.valle@ktl.fi

OBJECTIVE: To evaluate the quality of diabetes care at a national level in Finland, using level of glycemia as a determinant of success in treatment. RESEARCH DESIGN AND METHODS: Physicians and diabetes nurses in 76 randomly selected clinics (59 primary care units and 17 hospitals) evenly covering the whole of Finland were asked to fill in a questionnaire asking for data based on the 1993 medical records of a random sample of 50 diabetic patients from each center (total n = 3,800). HbAlc was used as an index of glycemic control. RESULTS: Information on 3,195 (84%) diabetic patients was received. HbAlc was measured in 67% of the patients in 1993. The mean HbAlc in the whole population was 8.6 +/- 1.9% (normal range 4-6%). Some 25% of patients had HbAlc < or = 7.3%, while 25% had HbAlc > or = 9.7%. The mean HbAlc was 8.8 +/- 1.9% in type 1 and 8.5 +/- 1.9% in type 2 diabetic patients. There was no sex difference in the HbAlc level in type 1 diabetic patients. However, male type 2 diabetic patients had better glycemic control than female patients (8.3 +/- 1.9 vs. 8.8 +/- 1.9%, P < 0.0001). The sex difference was independent of the type of therapy. The mean level of glycemic control was lowest among individuals with the shortest duration of diabetes. After 7-9 years after the diagnosis, there was no change in the mean level of glycemia. CONCLUSIONS: Average glycemic control is poor in a majority of the diabetic patients in Finland. Better treatment strategies and methods should be used to improve glycemic control and to reduce long-term complications.
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