Antibiotic exposure within the first 6 months of life Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD) Atopic dermatitis phenotypes between 6 months to 5 years (reference group: Non-AD)
Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs. Non-AD (ref.) vs.
Early transient Early transient Early transient Late onset Late onset Late onset Early persistent Early persistent Early persistent
aOR 95% CI 95% CI aOR 95% CI 95% CI aOR 95% CI 95% CI
No 1 1 1
Yes 0.97 0.55 1.7 1.16 0.62 2.19 1.84 1.18 2.86
No 1 1 1
Once 0.97 0.51 1.85 1.25 0.61 2.53 1.51 0.9 2.55
≥2 times 0.98 0.41 2.32 0.97 0.34 2.75 2.50 1.35 4.63