TABLE 3.

Female Sex as a Predictor of Selected Respiratory Outcomes (Adjusted Odds Ratios)

Odds ratio1 [95% C.I.]	All subjects	P-value	Subjects on home respiratory support2	P-value
Emergency department visit	0.97 [0.67, 1.41] (1071 forms; n = 417)	0.87	1.02 [0.59, 1.78] (459 forms; n = 157)	0.94
Inpatient hospitalization	1.16 [0.78, 1.72] (1072 forms; n = 418)	0.47	1.33 [0.75, 2.36] (459 forms; n = 158)	0.33
Systemic steroid use	1.20 [0.81, 1.76] (1065 forms; n = 416)	0.36	1.41 [0.84, 2.36] (459 forms; n = 158)	0.20
Antibiotic use	0.78 [0.55, 1.09] (1071 forms; n = 418)	0.15	0.83 [0.48, 1.43] (460 forms; n = 158)	0.49
Cough or wheeze	0.77 [0.53, 1.12] (1040 forms; n = 412)	0.17	0.75 [0.44, 1.28] (447 forms; n = 155)	0.30
Rescue β-agonist use	1.00 [0.67, 1.50] (1026 forms; n = 410)	1.00	0.94 [0.55, 1.62] (438 forms; n = 153)	0.83
Activity limitations	1.19 [0.72, 1.97] (1014 forms; n = 405)	0.49	1.31 [0.73, 2.35] (437 forms; n = 153)	0.37
Nighttime symptoms	1.16 [0.74, 1.82] (1033 forms; n = 409)	0.52	0.57 [0.26, 1.26] (443 forms; n = 154)	0.16

¹Odds ratios were generated through logistic regression with a dependent variable for specified respiratory morbidity, and an independent variable for sex (female = 1; male = 1), and were clustered by individual. Odds ratios were adjusted for race/ethnicity, birth weight percentile, log of median household income, and age at the time of form completion. Only forms completed prior to 3 years of age were included.

²A total of 181 of the 482 subjects in this study on home respiratory support. Specifically, 168 were on supplemental oxygen via nasal cannula, seven were on home ventilators with supplemental oxygen entrainment, and six were on home ventilators without supplemental oxygen.