Table 3. Comparison of hematological parameters in controls and cases (n = 200).

HbA1c: glycated hemoglobin; HGB: hemoglobin concentration in blood; HCT: hematocrit; MCV: mean corpuscular volume; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; RDW-CV: red cell distribution width - coefficient of variation

Parameter	All patients	Nondiabetic (n = 50)	Diabetic (n = 150)	p value	Reference range
HbA1c (%)	8.22 ± 2.47	6.37 ± 1.82	8.84 ± 2.33	0.000	<5.7% (normal); 5.7%-6.4% (prediabetes); ≥6.5% (diabetes)
HGB (g/dL)	12.77 ± 2.07	13.90 ± 2.31	12.64 ± 1.97	0.135	Male: 13-17; female: 12-15
HCT (%)	39.01 ± 5.93	40.35 ± 6.38	38.56 ± 5.70	0.086	Male: 40-54; female: 36-48
MCV (fL)	89.11 ± 8.13	89.46 ± 9.48	89.00 ± 7.61	0.750	80-100
MCH (pg)	29.17 ± 2.95	29.16 ± 3.35	29.17 ± 2.80	0.932	27-33
MCHC (g/dL)	32.71 ± 1.05	32.61 ± 0.97	32.74 ± 1.08	0.384	32-36
RDWcv (%)	13.60 ± 1.55	13.64 ± 2.13	13.59 ± 1.31	0.808	11.5-14.5