Table 4.

Multinomial logistic regression for wheeze phenotypes stratified by sex (vs. never/infrequent wheeze)^*

	Early transient wheeze		Persistent wheeze
	Girls	Boys	Girls	Boys
	n=64	n=101	n=69	n=101
Maternal asthma	2.03 (0.97, 4.25)	3.59 (1.90, 6.75)	2.13 (1.04, 4.35)	2.21 (1.11, 4.40)
Paternal asthma*	1.29 (0.59, 2.83)	0.85 (0.35, 2.09)	1.46 (0.68, 3.15)	4.27 (2.33, 7.83)
Household income >$70,000/year	0.78 (0.42, 1.46)	0.85 (0.48, 1.50)	0.72 (0.38, 1.36)	0.72 (0.41, 1.26)
Child race/ethnicity, vs. white
Black*	0.56 (0.21, 1.53)	1.25 (0.57, 2.76)	3.23 (1.55, 6.75)	1.50 (0.73, 3.09)
Hispanic	0.69 (0.13, 3.59)	1.11 (0.35, 3.53)	3.60 (1.06,12.17)	1.38 (0.47, 4.08)
Other	0.83 (0.38, 1.82)	1.27 (0.64, 2.51)	1.39 (0.63, 3.11)	0.96 (0.46, 2.01)
Season of birth, vs. winter
Spring	0.93 (0.46, 1.88)	1.74 (0.88, 3.43)	0.98 (0.46, 2.09)	0.87 (0.45, 1.69)
Summer	0.54 (0.25, 1.19)	1.36 (0.69, 2.70)	0.85 (0.40, 1.84)	0.82 (0.43, 1.57)
Fall	0.52 (0.23, 1.19)	1.30 (0.63, 2.70)	0.67 (0.30, 1.52)	0.86 (0.44, 1.70)
Gestation length, weeks	0.93 (0.81, 1.07)	1.05 (0.91, 1.21)	0.97 (0.84, 1.12)	0.92 (0.81, 1.04)
Birthweight for gestational age, z-score*	0.76 (0.55, 1.03)	1.13 (0.87, 1.47)	0.83 (0.61, 1.13)	1.11 (0.86, 1.42)
Duration of breastfeeding, months	0.92 (0.86, 0.98)	0.98 (0.92, 1.03)	0.97 (0.91, 1.03)	1.02 (0.97, 1.08)
Environmental smoke exposure before 1 year	1.73 (0.67, 4.44)	1.02 (0.39, 2.64)	1.96 (0.81, 4.73)	2.16 (0.96, 4.89)
Bronchiolitis before age 1 year	4.84 (2.34, 9.98)	10.17 (5.47,18.93)	4.38 (2.03, 9.45)	6.49 (3.29,12.79)
Atopic dermatitis before age 1 year	2.06 (1.04, 4.09)	1.24 (0.69, 2.23)	2.88 (1.54, 5.38)	2.01 (1.16, 3.49)

^*Statistically significant interaction with sex on persistent wheeze.