Table 1 Baseline characteristics of patients in each group on admission
IVMP(n = 44)Additional IVIG(n = 19)p Value
Sex (male/female)23/2111/80.682†
Age (months)31.3 (23.8)28.1 (21.0)0.539‡
White blood cell count (×104/mm3)14.0 (4.6)15.2 (3.7)0.092†
CRP (mg/dl)10.1 (4.7)11.5 (4.8)0.105‡
Harada’s score*4.7 (1.1)4.4 (0.8)0.630‡
IVMP-resistant(n = 10)Additional-IVIG-resistant(n = 7)p Value
Sex (male/female)6/44/30.906†
Age (months)24.4 (25.5)25.7 (18.1)0.254‡
White blood cell count (×104/mm3)14.0 (3.4)17.1 (4.1)0.081‡
CRP (mg/dl)11.8 (3.5)8.8 (4.8)0.048‡
Harada’s score*5.1 (0.88)4.1 (0.69)0.034‡
  • Values are mean (SD). p<0.05 was considered significant.

  • *Harada’s score is a risk score of cardiac complications, commonly used in Japan.

  • †χ2 test.

  • ‡Mann–Whitney U test.

  • CRP, C-reactive protein; IVIG, intravenous immunoglobulin; IVMP, intravenous methylprednisolone.