J Korean Acad Fundam Nurs.  2015 Nov;22(4):433-441. 10.7739/jkafn.2015.22.4.433.

Factors Associated with Hemoglobin A1c among Patient Aged 40 years over with Diabetes Mellitus: 2012 Korea Health and Nutrition Examination Survey

Affiliations
  • 1Department of Nursing, College of Medicine, Catholic Kwandong University, Korea. 93eunjoo@hanmail.net

Abstract

PURPOSE
S: This study was done to identify factors associated with uncontrolled hemoglobin A1c among patient with diabetes mellitus. METHOD: The sample was 412 Koreans with diagnosed diabetes aged 40 years or older who participated in the Fifth Korea Health and Nutrition Examination survey, which was a nationwide, cross-sectional survey. Data was analyzed using logistic regression. Uncontrolled hemoglobin A1c rate was 55%.
RESULTS
There was a difference between controlled and uncontrolled group in hemoglobin A1c as follows: duration of diabetes, BMI(Body Mass Index), hypertriglyceridemia, vitamin D, sleep duration. After adjusting for confounding factor, longer duration of diabetes (>7 years vs. < or =7)(Adjusted OR=2.277, 95% CI [1.277-4.060]), presence of hypertriglyceridemia (Adjusted OR=4.019, 95% CI [1.871-8.634]), lower vitamin D level (<20ng/mL vs. > or =20)(Adjusted OR=2.487, 95% CI[1.411-4.381]), longer sleep duration (6-8 hours vs >8 hours)(Adjusted OR=6.831, 95% CI [1.877-24.855]) were significantly associated with increased odds of uncontrolled hemoglobin A1c.
CONCLUSIONS
Results show that duration of diabetes, hypertriglyceridemia, vitamin D and sleep duration are significantly related to hemoglobin A1c. Therefore, considering these factors it would be helpful to develop strategies to improve blood glucose control in patients with diabetes.

Keyword

Diabetes mellitus; Vitamin D; Hemoglobin A1c; Hypertriglyceridemia
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