Table 3 Characteristics of infants < 8 months with and without persistent CAA at 1 year after KD onset

Age (months)

2.5 (1.8; 3.6)

2.5 (1.8; 4.7)

0.820

Male sex

3 (42.9%)

43 (60.5%)

0.613

Incomplete KD

3 (42.9%)

26 (36.6%)

1.000

Days of fever before IVIG infusion

5 (4;10)

5 (4; 6)

0.323

IVIG resistance

2 (28.6%)

7 (9.9%)

0.391

Peak WBC count (10⁹/L)

19.79 (15.26; 39.29)

18.16 (14.44; 23.73)

0.392

Peak percentage neutrophils

0.73 ± 0.12

0.64 ± 0.13

0.138

Peak NLR

3.41 (2.53; 9.11)

2.68 (1.71; 3.80)

0.174

NLR after IVIG

0.60 (0.30; 2.57)

0.59 (0.31; 1.28)

0.893

Peak hemoglobin (g/L)

77.83 ± 9.06

86.63 ± 9.95

0.040

Peak platelet count (10⁹/L)

785.7 ± 112.4

706.7 ± 221.5

0.392

Peak CRP (mg/L)

125.5 (51.8; 162.5)

82.0 (50.0; 110.0)

0.100

 WBC count (10⁹/L)

16.58 (11.81;19.36)

13.13 (9.05; 16.83)

0.184

 Percentage neutrophils

0.63 ± 0.17

0.57 ± 0.15

0.456

 NLR

2.76 (1.45: 4.43)

2.04 (1.35; 2.86)

0.350

 Hemoglobin (g/L)

108.67 ± 15.67

116.67 ± 14.62

0.205

 Platelet count (10⁹/L)

364.7 ± 115.5

339.4 ± 124.8

0.634

 CRP (mg/L)

46.00 (14.0; 86.2)

37.0 (15.7; 64.8)

0.700

 WBC count (10^9/L)

14.52 (8.84; 17.42)

14.08 (9.46; 18.50)

0.992

 Percentage neutrophils

0.52 ± 0.24

0.50 ± 0.20

0.837

 NLR

2.18 (0.50; 4.63)

1.37 (0.66; 2.77)

0.610

 Hemoglobin (g/L)

83.50 ± 9.61

101.230 ± 16.70

0.012

 Platelet count (10⁹/L)

424.0 ± 284.7

423.7 ± 164.2

0.997

 CRP (mg/L)

82.3 (46.3; 125.8)

47.1 (34.4; 95.5)

0.215