Physiology

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Normal values of Hemoglobin A1c (Hb A1c) in nondiabetic adults
(2017-10) Ibrahim A Ali; Mazin S Abdalla; Omer A Musa
Background:At present, there are no studies done to investigate the normal values of Hb A1c in Sudanese population. The level of Hb A1c for Sudanese population is borrowed from international references. Objectives: The objective of this article is to investigate the normallevels of Hb A1c, and the factors that may affect its value. Methods: Extensive internet search has been done on research regarding the normal values of Hemoglobin A1c and factors affecting themin non-diabetic Adults. Result: Normal level of Hb A1cobtained from all previous studies showed a value of 3.6% as minimum and 6.5 % as maximum value. Significant racial/ethnic differences in Hb A1clevelswere observed;these differences are significantly higher in people fromAfrican descent than inCaucasians. Discussion: Hb A1cis influenced by many risk factors; these include BMI,physical activity, age, ethnicity, diet and smoking. Conclusion: Normal level of Hb A1c from all previous studies showed a value of 3.6% as minimum and 6.5 % as maximum value and seemed to be affected by many risk factors.