Table 1. Characteristics Of Included Studies.

	Patient characteristics
								IVIG		Corticosteroids (starting regimen)
Study name	Total (n)	Standard therapy	Standard therapy + corticosteroids	Male (%)	Age (years)	Maximum days before enrollment	Aspirin regimen (mg/kg)	Dose (mg/kg)	Number of doses	Preparation	Dosage (mg/kg)	Frequency (times/day)
Inoue 2006	178	88	90	57.3	4.5	9	30	1	2	pednisolone	2	3
Newburger 2007	199	98	101	62	2.9	10	80–100	2	1	IV methylprednisolone	30	1
Okada 2003	32	18	14	56.25	2.75	9	30	1	2	pednisolone	2	3
Sundel 2003	39	21	18	69	-	10	20–25	2	1	IV methylprednisolone	30	1