TABLE IV.

Association between Infancy factors and EoE

Infancy factor	Control subjects (n = 121)	Cases (n = 127)	OR	aOR*
NICU admission
No	107	101	Referent	Referent
Yes	14	26	1.97 (0.97–3.98)	1.92 (0.95–3.89)
Breast-feeding, any
No	28	26	Referent	Referent
Yes	93	101	1.17 (0.64–2.14)	1.11 (0.60–2.05)
Antibiotic use (infancy)†
No	35	19	Referent	Referent
Yes	70	88	2.32 (1.22–4.40)	2.30 (1.21–4.38)
Acid suppressant use (infancy)‡
No	99	19	Referent	Referent
Yes	18	18	5.21 (2.30–11.80)	6.05 (2.55–14.40)
Cats or dogs in home (infancy)
No	40	58	Referent	Referent
Yes	81	69	0.59 (0.35–0.98)	0.58 (0.34–0.97)

^*Includes adjustment for maternal education.

^†Sample was reduced to 105 cases and 107 control subjects because of missing data.

^‡Restricting analysis to those reporting symptoms at age 3 years or later for cases (n = 37); there were missing data on 4 control subjects.