Research Article

Lower Hemoglobin Concentration Is Associated with Retinal Ischemia and the Severity of Diabetic Retinopathy in Type 2 Diabetes

Table 1

Hematological variables of the study groups according to presence or absence of diabetic retinopathy (DR).

Without DR
()
With DR
()
value

Leukocytes (×109/L)6670 (5600–7730)6795 (5685–8035)0.3765
Hemoglobin (gr/dL)13.8 (13–14.6)13.6 (12.8–14.8)0.5435
Erythrocytes (×1012/L)4.6 [4.4–5.0]4.6 [4.4–4.9]0.9407
Hematocrit (%)41.10 [39–43.9]40.95 [38.8–43.25]0.7114
MCV (fL)87.8 [85.1–90.5]87.6 [85.0–90.1]0.6169
MCH (pg)29.4 [28.4–30.6]29.3 [28.0–30.7]0.4814
MCHC (g/dL)33.5 [32.8–34.1]33.4 [32.7–34.3]0.7543
Fe (g/dL)78 (63–99)74 (58–96)0.2534
Ferritin (ng/mL)131.2 (55.5–227.8)98.5 (38–211.9)0.0624

Data are presented as medians and interquartile ranges. BP: blood pressure, MCV: mean corpuscular volume, MCH: mean corpuscular hemoglobin, and MCHC: mean corpuscular hemoglobin concentration.