Table 1– Relationship between serum titres of Staphylococcus aureus enterotoxin (SAE)-immunoglobulin (Ig)E and disease risk: univariate logistic regression

Clinical outcome	Cohort subgroup	Subjects	SAE-IgE
Clinical outcome	Cohort subgroup	Subjects	OR (95% CI)	p-value
Asthma	Whole population	1337 (140)	1.95 (1.39–2.76)	<0.001
	Atopics	799 (113)	1.47 (1.01–2.16)	0.048
	Non-atopics	537 (27)	1.83 (0.61–5.52)	0.286
Rhinoconjunctivitis	Whole population	1336 (527)	1.93 (1.50–2.48)	<0.001
	Atopics	798 (413)	1.21 (0.91–1.62)	0.188
	Non-atopics	537 (114)	1.79 (0.93–3.44)	0.080
BHR	Whole population	1286 (236)	2.06 (1.54–2.76)	<0.001
	Atopics	767 (182)	1.53 (1.11–2.12)	0.010
	Non-atopics	518 (54)	2.41 (1.04–5.58)	0.041

Data for subjects are presented as total cases in analysis (cases positive for clinical outcome). Odds ratio is per log₁₀ (kU·L⁻¹). BHR: bronchial hyperresponsiveness.