Table 2 Hematological and blood biochemical measurements of the 71 age-matched pediatric IA and COVID-19 patient pairs^a

  Count(×10⁹/L)

1.8 (1.0–3.4)

3.2 (1.8–5.0)

< 0.01

  Percentage (%)

26.0 (12.0–44.0)

50.4 (36.6–68.6)

< 0.01

  Count (×10⁹/L)

4.2 (2.8–7.7)

2.2 (1.4–4.1)

< 0.01

  Percentage (%)

62.0 (43.0–78.0)

37.7 (21.5–49.1)

< 0.01

 Hemoglobin (g/L)

112.0 (101.0–123.0)

123.0 (111.0–128.0)

< 0.01

 Neutrophil-to-lymphocyte ratio

2.6 (0.9–7.1)

0.7 (0.3–1.4)

< 0.01

 Activated partial thromboplastin time (s)

42.4 (38.7–46.3)

35.2 (30.9–40.5)

< 0.01

 Prothrombin time (s)

14.0 (12.7–15.1)

11.6 (10.7–12.8)

< 0.01

 Albumin (g/L) (n = 61)

42.0 (39.9–43.6)

44.2 (42.1–46.7)

< 0.01

 C-reactive protein (mg/L) (n = 61)

5.8 (1.2–20.6)

0.9 (0.8–5.0)

< 0.01

 Procalcitonin (ng/mL) (n = 44)

0.4 (0.2–1.0)

0.1 (0.1–0.1)

< 0.01