Table I.

Characteristics of study participants.

	Overall (n=467)	Recurrent Wheeze 36% (n=166)	No Recurrent Wheeze 64% (n=301)
Mother completed high school	58% (273)	55% (92)	61% (181)
Mother married	14% (64)	13% (21)	14% (43)
Mother has ever had asthma	50% (234)	55% (91)	48% (143)
Household income < $15,000*	69% (321)	75% (124)	65% (197)
Number of smokers in home*	0.93 ± 1.0	1.1 ± 1.2	0.84 ± 0.91
Child’s race/ethnicity
Black	71% (333)	72% (120)	71% (213)
Hispanic	20% (92)	16% (27)	21% (65)
Other	9% (42)	12% (19)	8% (23)
Child’s gender: Male	51% (240)	56% (93)	49% (147)
C-section delivery	33% (154)	36% (60)	31% (94)
Child’s birth weight (g)*	3258.0 ± 504.4	3203.8 ± 567.0	3287.9 ± 464.6
Gestational age*	38.8 ± 1.5	38.4 ± 1.6	39.0 ± 1.4
Breastfed child at 3 months	24% (100)	20% (29)	26% (71)
BMI at age 3	16.7 ± 2.4	16.9 ± 2.9	16.7 ± 2.1

^*Significant difference (p<0.05) between recurrent wheeze group and children without recurrent wheeze.