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Table 3 Incidence of Abnormality in Red Blood Cell up to Seven Days after Surgery

From: A retrospective cohort study on red blood cell morphology changes in pre-school age children under nitrous oxide anesthesia

 

Air group

N2O group

P value

Anemia (Hb < 110 g/L), N (%)

42 (64.6)

30 (42.3)

0.009

Macrocytosis (MCV > 97 fL), N (%)

0

0

Microcytosis (MCV < 82 fL), N (%)

37 (56.9)

37 (52.1)

0.574

Hypochromatosis (MCHC< 320 g/L), N (%)

1 (1.5)

0 (0)

0.478

Hyperchromatosis (MCHC> 360 g/L), N (%)

4 (6.2)

3 (4.2)

0.709

Anisocytosis (RDW > 15%), N (%)

6 (9.2)

5 (7.0)

0.640

  1. Data are presented as numbers (percentage). N2O nitrous oxide; Hb hemoglobin; MCV mean corpuscular volume; MCHC mean corpuscular hemoglobin concentration; RDW red-cell distribution width