Endotoxin Exposure in Early Life and Allergen Sensitization at School Age Endotoxin, living room (EU/mg)
Allergen sensitization Unadjusted Adjusted OR OR (95% CI) (95% CI) Yes No
First quartile
34
16
Upper three quartiles
90
81
1.0
1.0
0.5 (0.3 - 1.0) 0.5 (0.2 - 0.9)
Adjusted for sex, household income, and living in a single-family home.