Table 1.

Demographic and IgE data in the examined family-based food allergy cohort.

	Father (328)	Mother (567)	Index child (580)	Other siblings (529)
Age (mean; SD), yr	40 (6)	38 (6)	7 (4)	6 (4)
Sex, % male	--	--	60	50
Ethnicity, % *
African American	3	6	7	6
Caucasian	84	76	76	78
Hispanics	7	9	9	8
History of food allergy, % yes	18	21	78	17
History of asthma, % yes	18	23	38	20
History of eczema, % yes	15	20	64	32
History of seasonal allergy, % yes	34	39	38	20
Total IgE (mean; SD), kU/L	113 (250)	81 (150)	426 (1089)	131 (261)
Specific IgE, % detectable
Egg white	11	11	66	39
Sesame	35	25	70	35
Peanut	16	14	67	24
Soy	12	9	57	23
Milk	17	16	67	43
Shrimp	17	12	25	12
Walnut	9	6	46	16
Cod fish	2	1	14	3
Wheat	30	22	65	38
D pteronyssinus	44	34	43	22
D farinae	45	36	53	25
Cat	36	34	52	27
Dog	38	36	68	33
Cockroach	23	16	45	16
Alternaria	36	29	57	32
Number of positive food-specific IgE, %
0	47	55	13	37
1	16	19	8	17
2 or more	37	27	79	47
Number of positive aeroallergen-specific IgE, %
0	30	40	17	47
1	21	19	15	17
2 or more	49	41	69	35

^*Note: Ethnicity information of index child and other siblings is the same as maternal ethnicity information