Table 2.

Cases: allergic vs. non-allergic. Multivariate logistic regression analysis of OM recurrences.

	OM episodes per year
Risk factors	<5 episodes					>5 episodes					Global Odds Ratio (G. or)
	Allergy					Allergy					95% Confidence Limits (95% CI)
	Yes		No		Total	Yes		No		Total
	n	%	n	%		n	%	n	%		p-Value
Asthma
Yes	2	0.9	6	2.9	8	6	2.9	4	1.9	10	G. or = 1.11
No	10	3.9	52	25.5	60	18	8.8	108	52.9	126	95% CI: 0.37–12.66
Total	12	4.9	58	28.4	68	24	11.7	112	54.8	136	p = 0.0001
Presence of pets
Yes	2	0.9	14	6.8	16	2	0.9	34	16.6	36
No	8	3.9	44	21.5	52	20	9.8	80	39.2	100
Total	10	4.9	58	28.4	68	22	10.8	114	55.8	136
Cough
Yes	8	3.9	34	16.6	42	22	10.8	82	40.2	104	G. or = 1.74
No	2	0.9	24	11.7	26	2	0.9	30	14.7	32	95% CI 0.55–2.91
Total	10	4.9	58	28.4	68	24	21.5	112	54.9	136	p = 0.0001
Runny nose
Yes	10	4.9	50	24.5	60	26	12.7	82	40.2	108
No	2	0.	8	3.9	10	6	2.9	20	9.8	26
Total	12	5.8	58	28.4	70	32	15.6	102	50.0	134