Table 2 Comparison between intravenous methylprednisolone (IVMP)-resistant group and additional intravenous immunoglobulin (IVIG)-resistant group
IVMP resistant(n = 10)Additional-IVIGresistant(n = 7)p Value
The day of initial IVIG therapy
    Mean (SD)4.0 (0.47)4.9 (2.2)0.103
    Median, range4, 3–55, 2–9
The day of the 2nd therapy*
    Mean (SD)6.7 (0.67)7.9 (2.0)0.113
    Median, range7, 6–88, 5–11
The day of the 3rd therapy†
    Mean (SD)15.9 (2.7)12.0 (3.6)0.022
    Median, range16, 11–2011, 8–19
The day of final resolution of fever
    Mean (SD)19.8 (8.2)13.6 (5.9)0.026
    Median, range17, 11–3512, 9–26
  • *2nd-line therapy: IVMP or additional IVIG.

  • †3rd-line therapy: additional therapy for non-responders to the 2nd therapy.

  • The two groups were analysed using the Mann–Whitney U test; p<0.05 was considered significant.