TABLE 4.

Logistic Regression Modeling Results of Children Experiencing Adverse Respiratory Related Health Outcomes: Gender-Specific Intraschool Comparison

Variables			All Subjects				Sensitivity Analysise
					Crude	Adjustedd			Adjustedd
Gender	School	Health Outcomes	n	Events	ORc (95% CIc)	OR (95% CI)	n	Events	OR (95% CI)
Males with females	CESa only	PEFb <80%	535	89	0.87 (0.55–1.37)	0.83 (0.50–1.38)	437	72	0.87 (0.51–1.47)
		FeNOb ≥20 parts per billion (ppb)	527	85	1.51 (0.95–2.41)	1.66 (0.95–2.89)	432	61	1.58 (0.89–2.80)
Males with females	EESa only	PEF <80%	531	136	0.53 (0.35–0.79)	0.59 (0.37–0.92)	417	92	0.64 (0.39–1.04)
		FeNO ≥20 ppb	525	89	2.32 (1.45–3.72)	1.93 (1.14–3.26)	411	72	1.92 (1.12–3.32)

^aEES = exposure elementary school; CES = control elementary school.

^bPEF = peak expiratory flow; FeNO = fractional exhaled nitric oxide.

^cOR = odds ratio; 95% CI = 95% confidence interval.

^dModel = sex (1 = males, 0 = females), age, race, environmental tobacco smoke, time spent outdoors, median household income, total diesel pollution, and proximity to nearest major road.

^eSensitivity analysis included only subjects residing more than six months at their current address.