AB-: no antibiotics in the first week of life; AB+: antibiotics in the first week of life, for 2-3 days (AB2) or 5-7 days (AB7). *Significant difference between AB+ and AB- by independent t-test and non-parametric test as appropriate 1 Parental reporting, collected prospectively every month during the first year of life.2 Parental reporting, collected retrospectively during the follow-up.
Table 2: incidence of atopic disorders