Table 1.

Odds ratios and 95% confidence intervals for ALL cases vs. controls who reported having allergy to specific allergens in the first year of life in the CCLS

Allergen		Cases (n=977)	Controls (n=1073)	Odds Ratioa	95% Confidence Interval	P-Value
Any Allergy	No	827	942
	Yes	128	119	1.29b	0.97,1.72	0.08
Hay Fever	No	927	1020
	Yes	22	30	0.75	0.42,1.32	0.32
Food	No	906	995
	Yes	40	45	1.09	0.69,1.71	0.71
Drugs and Medications	No	909	1011
	Yes	38	26	1.63	0.96,2.75	0.07
Food/Drug	No	873	970
	Yes	74	70	1.24	0.87,1.76	0.24
Allergy Count	No	851	954
1 Allergen vs. None	Yes	88	91	1.08	0.79,1.49
2+ Allergens vs. None	Yes	16	16	1.24	0.60,2.56	0.56c

^aAdjusted for age, sex, maternal race, child’s Hispanic status, income, mode of delivery, daycare attendance, and birth order

^bMarginal effect where model additionally includes interaction term median-centered age*any allergy. See figure 2 for results from age strata

^cTest for linear trend