Introduction: Hemoglobin A1c (HbA1c) is used to monitor glucose homeostasis and to
identify risk for diabetes. As diabetic patients are frequently present with dyslipidaemia,
low-grade inflammation and hyperuricemia, we tested whether HbA1c levels can be estimated
having the information about lipid profile, uric acid (UA) and Creactive protein (CRP)
levels. We developed formulas to describe the association of these parameters with
HbA1c levels. Methods: Data of 9599 male and 10,817 female patients, measured between
2008 and 2018, were analysed. Patients represented a general hospital patient population
with overrepresentation of those with elevated HbA1c over 5.6%. The impact of gender,
age, CRP, lipid profile and UA levels on HbA1c % on HbA1c levels was tested with multiple
linear regression model. The magnitude of effects of individual factors was used to
develop formulas to describe the association between HbA1c and other cardiometabolic
parameters. With these formulas we estimated median HbA1c values in each age in both
gender and compared them to measured HbA1c levels. Results: The developed formulas
are as follow: HbA1c (estimated) in women = 0.752 + 0.237*log10(HDL/ cholesterol)
+ 0.156*log10 (cholesterol) + 0.077*log10 (triglyceride) + 0.025*log10(CRP) +0.001*log10
(age) -0.026*log10(HDL/LDL) -0.063*log10 (uric acid)-0.075*log10 (LDL)-0.199*log10(HDL);
HbA1c (estimated) in men = 1.146 + 0.08*log10 (triglyceride) + 0.046*log10(CRP) +
0.01*log10 (cholesterol) + 0.001*log10 (age) -0.014*log10(HDL)-0.018*log10(HDL/LDL)-0.025*log10(HDL/cholesterol)
-0.068*log10 (LDL)0.159*log10 (uric acid) Between 20 and 70 years of age, estimated
HbA1c matched perfectly to measured HbA1c in. Conclusion: At population level, HbA1c
levels can be estimated almost exactly based on lipid profile, CRP and uric acid levels
in female patients between 20 and 70 years.
