Table 1. IVIG resistance prediction scores in the present patient

Variable score	Cutoff	Patient value	Score
(A) Kobayashi score	Low (0–3) High (≥ 4)		High
Days of illness at initial treatment	≤ 4 days	4 days	2
Serum sodium	≤ 133 mmol/L	134.1	0
AST	≥ 100 IU/L	72	0
Neutrophils	≥ 80%	74%	0
CRP	≥ 10 mg/dL	17.98	1
Age	≤ 12 months	5 years	0
Platelet count	≤ 300 × 109 /L	204 × 109 /L	1
Total score	High		4

(B) Egami score	Low (0–2) High (≥ 3)		High
Days of illness at initial treatment	≤ 4 days	4 days	1
Age	≤ 6 months	5 years	0
Platelet count	≤ 300 × 109 /L	204 × 109 /L	1
CRP	≥ 8 mg/dL	17.98	1
ALT	≥ 80 IU/L	78	0
Total score	High		3

(C) Harada score	Low (0–3) High (≥ 4)		High
WBC	> 12,000 /μL	6,100	0
Platelet count	< 350 × 109 /L	204 × 109 /L	1
CRP	> 3 mg/dL	17.98	1
Hematocrit	< 35%	35.2	0
Albumin	< 35 g/L	31	1
Age	≤ 12 months	5 years	0
Male sex	Yes	Yes	1
Total score	High		4

IVIG: intravenous immunoglobulin; AST: aspartate aminotransferase; CRP: C-reactive protein; ALT: alanine aminotransferase; WBC: white blood cell.