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[Glycemic control related factors in type 2 diabetes mellitus patients].

OBJECTIVES
To describe metabolic, lipidic and blood pressure control and to identify blood glucose control predictive factors in patients with type 2 diabetes.


MATERIAL AND METHODS
Retrospective cohort study. Ambulatory type 2 diabetic patients were selected from 2/1/00 to 14/11/01 if they had been visited yearly at least three years previously. They were classified into three groups: a) initial and final treatment with diet and/or oral glucose-lowering drugs; b) insulinized patients during follow-up; and c) initial and final therapy with insulin. BODY MASS INDEX: (BMI), blood pressure, HbA1c and lipid profile were determined at start and at the end of the study. A multiple regression model was used to predict mean HbA1c through follow-up.


RESULTS
320 patients were selected, 199 women (62.2%) and 121 men (37.8%) with mean age of 69 years (SD: 9). Mean follow-up was 5.2 years (SD: 1.1). 106 patients (33.8%) were included into A group, 70 patients (22.4%) into B group and 137 (43.8%) into C group. 63% of patients had values of HbA1c > 7.5%, 36% blood pressure > 140/85 mmHg and 8.5% LDL values > 155 mg/dl. HbA1c mean through follow-up was of 8.2% and its independent predictors were baseline HbA1c (0.37; IC 95% 0.31-0.43; p < 0.001), baseline BMI (0.023; IC 95% 0.004-0.042; p = 0.017), baseline treatment with insulin (0.67; IC 95% 0.45-0.88; p < 0.001) and insulinization during follow-up (0.46; IC 95% 0.21-0.71; p < 0.001).


CONCLUSIONS
It's difficult to achieve an acceptable blood glucose control. Mean HbA1c predictive factors include baseline HbA1c and BMI and insulin therapy.