Exposure to Helicobacter pylori infection in early childhood and the risk of allergic disease and atopic sensitization: a longitudinal birth cohort study.

pylori infection variable representing timing of infection revealed the lowest prevalence of the outcomes amongst children infected at age 3 but not at 5, and consistently reduced ORs in infected children for eczema and sensitization, but overall associations did not reach statistical significance (Tables 6 ).

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