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Correlation between hemoglobin A1c and serum lipid profile in Afghani patients with type 2 diabetes: hemoglobin A1c prognosticates dyslipidemia.
BACKGROUND: Patients with type 2 diabetes (T2DM) have an increased prevalence of dyslipidemia, which contributes to their high risk of cardiovascular diseases (CVDs). This study is an attempt to determine the correlation between hemoglobin A1c (HbA1c) and serum lipid profile and to evaluate the importance of HbA1c as an indicator of dyslipidemia in Afghani patients with T2DM.
METHODS: A total of 401 Afghani patients with T2DM (men, 175; women, 226; mean age, 51.29 years) were included in this study. The whole blood and sera were analyzed for fasting blood sugar (FBS), HbA1c, total cholesterol (TC), triglycerides (TGs), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C). Dyslipidemia was defined according to the National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III) guidelines. Diabetes was defined as per American Diabetes Association criteria. The correlation of FBS, HbA1c with lipid ratios and individual lipid indexes were analyzed. The statistical analysis was done by SPSS statistical package version 16.0.
RESULTS: The mean age ± standard deviation of male and female patients were 51.71 ± 11.70 and 50.97 ± 10.23 years respectively. There was a significant positive correlation between HbA1c, TC, TG, LDL-C and LDL-C/HDL-C ratio. The correlation between HbA1c and HDL-C was negative and was statistically nonsignificant. Furthermore, HbA1c was found to be a predictor of hypercholesterolemia, LDL-C and TG via a linear regression analysis. Patients with HbA1c value greater than 7.0% had significantly higher value of cholesterol, LDL-C, and LDL-C/HDL-C ratio compared with patients with an HbA1c value up to 7.0%.
CONCLUSIONS: Apart from a reliable glycemic index, HbA1c can also be used as a predictor of dyslipidemia and thus early diagnosis of dyslipidemia can be used as a preventive measure for the development of CVD in patients with T2DM.
METHODS: A total of 401 Afghani patients with T2DM (men, 175; women, 226; mean age, 51.29 years) were included in this study. The whole blood and sera were analyzed for fasting blood sugar (FBS), HbA1c, total cholesterol (TC), triglycerides (TGs), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C). Dyslipidemia was defined according to the National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP III) guidelines. Diabetes was defined as per American Diabetes Association criteria. The correlation of FBS, HbA1c with lipid ratios and individual lipid indexes were analyzed. The statistical analysis was done by SPSS statistical package version 16.0.
RESULTS: The mean age ± standard deviation of male and female patients were 51.71 ± 11.70 and 50.97 ± 10.23 years respectively. There was a significant positive correlation between HbA1c, TC, TG, LDL-C and LDL-C/HDL-C ratio. The correlation between HbA1c and HDL-C was negative and was statistically nonsignificant. Furthermore, HbA1c was found to be a predictor of hypercholesterolemia, LDL-C and TG via a linear regression analysis. Patients with HbA1c value greater than 7.0% had significantly higher value of cholesterol, LDL-C, and LDL-C/HDL-C ratio compared with patients with an HbA1c value up to 7.0%.
CONCLUSIONS: Apart from a reliable glycemic index, HbA1c can also be used as a predictor of dyslipidemia and thus early diagnosis of dyslipidemia can be used as a preventive measure for the development of CVD in patients with T2DM.
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