Table 1.

Families With KS With 2 Affected Siblings

Family No.	Case No.*	Age at Onset, y	Interval, y†	Ethnicity	No. of Criteria for KS Met‡	Medical Records Reviewed	Parental Interview Conducted	No. of IVIG Doses	Aneurysms
1	1	1	1.83	Filipino/Korean	4	Yes	No	1	No
	2	0.33			4	Yes	No	1	No
2	1	5	1.42	Korean	5	Yes	No	1	No
	2	3			5	Yes	No	1	No
3	1	4	2.50	Japanese	5	Yes	No	1	No
	2	6			5	Yes	No	1	No
4	1	3	0.66	White	4	No	Yes	2	Yes
	1§	3.66			4	No	Yes	1
	2	0.67	>1		4	No	Yes	2	No
5	1	12	>1	White	5	Yes	Yes	2	No
	2	0.75			5	Yes	Yes	1	No
	2§	5	>1		5	Yes	Yes	1	No
6	1	6	0.23	White	4	Yes	Yes	2	No
	2	4			4	Yes	Yes	1	No
7	1	10	0.06	White	4	No	Yes	1	Yes
	2	2.50			4	No	Yes	0	No
8	1	4.17	4.67	White	3	Yes	No	0	No
	2	1.58			4	Yes	No	1	No
9	1	0.46	0.02	Mexican American	5	Yes	Yes	1	No
	2	0.48			5	Yes	Yes	2	No

Abbreviations: IVIG, intravenous immunoglobulin; KS, Kawasaki syndrome.

^*Numbered in the order of KS occurrence.

^†Time between KS episodes in the first and second child.

^‡The total number possible was 5, including rash, conjunctival injection, changes in the oropharynx, changes in the extremities, or a cervical lymph node larger than 1.5 cm.

^§Recurrent case.