Table 3.

Total isoflavone and genistein intake (milligrams per week) for mothers and Kawasaki cases and controls stratified by ethnicity

Isoflavone intakea	Whites (n = 278)		Asians (n = 49)		Other (n = 47)b
	Controls	Cases	Controls	Cases	Controls	Cases
Mothers
During pregnancy	n = 149	n = 129	n = 18	n = 31	n = 26	n = 21
Total isoflavones	4.2 (0–40.8)	2.0 (0–31.4)	52.7 (16.3–85.3)	61.7 (33.5–159.4)	0 (0–10.4)	0.1 (0–7.3)
Genistein	2.2 (0–22.0)	1.0 (0–16)	26.9 (8.3–40.8)	31.0 (16.6–82.4)	0 (0–5.1)	0 (0–4.0)
While breast-feedingc	n = 126	n = 116	n = 17	n = 28	n = 15	n = 13
Total isoflavones	6.9 (0.1–46.0)	4.0 (0.1–31.5)	52.4 (16.3–56.7)	60.7 (40.1–176.4)	0.3 (0–12.9)	2.9 (0–11.4)
Genistein	3.7 (0–23.2)	1.7 (0–16.3)	26.5 (8.3–30.8)	30.4 (20.1–89.7)	0.1 (0–6.8)	1.1 (0–6.2)
	Whites (n = 274)		Asians (n = 51)		Other (n = 49)b
	Controls	Cases	Controls	Cases	Controls	Cases
Children	n = 148	n = 126	n = 21	n = 30	n = 24	n = 25
Total isoflavones	0 (0–8.6)	0 (0–13.4)	0 (0–25.4)	27.6 (2.9–59.6)	0 (0–0)	0 (0–29.3)
Genistein	0 (0–4.2)	0 (0–6.6)	0 (0–13.0)	13.7 (1.6–26.7)	0 (0–0)	0 (0–12.8)

Values expressed as median (interquartile range).

^aTotal isoflavones = sum of genistein, daidzein, and glycitein.

^b“Other ethnicity” includes 22 mixed races, 10 African Americans, 3 Native Americans, 1 Pacific Islander, and 11 not indicated (13 for children).

^cNot all mothers breastfed.