Consistency of Fasting Blood Glucose & Oral Glucose Tolerance Test: A hospital based study in Bangladesh
M.S.H. Talukder, A.K.A. Khan, S.M.K. Ali, S. Vaaler, A. Hussain
Abstract:
Introduction:
Data on the internal consistency of fasting blood glucose (FBG) and 2 hrs-oral glucose tolerance test (OGTT) are scarce despite of its importance both for research and treatment purposes.
Methods:
FBG and OGTT were performed on two consecutive days among the 218 (107 men and 111 women) newly diagnosed type 2 diabetes patients at BIRDEM (a diabetic hospital), Dhaka Bangladesh. Further, an interview with each subject was conducted and HbA1c, bio-physical and anthropometric examinations were performed.
Results:
Results:
The mean differences for the estimation of blood glucose values varied significantly among the female subjects from 1st to 2nd day following FBG procedures (p< 0.01, 95% CI -0.08 to -0.6). It appeared that there was a higher concordance between 1st and 2nd day at the lower level of FBG values, whereas OGTT showed improved concordance with higher blood glucose values.
Conclusions:
Further studies are needed to investigate the observed difference in FBG measures with specific attention to BMI and the fasting state. The observed variation for FBG and OGTT should be considered during diagnosis of diabetes or control of the condition.
Keywords:
FBG, OGTT, Diagnosis, Diabetes