3.4 Allergic disease trajectories
The reported prevalences of eczema, asthma and hay fever within each age bracket, stratified by FA presence, are presented in Figure 4 and Supplementary Table 6 . In all FA groups the peak in prevalence of eczema was observed in the age bracket 6 months – 3 years, followed by a steady decline over the later age brackets. Regarding asthma, the highest prevalence over all groups was observed in the age bracket 4 – 7 years and for hay fever in the age bracket 8 – 12 years. Generally, prevalence of eczema was higher than prevalence of asthma and hay fever, at least until the age bracket of 4 – 7 years. Comparing eczema prevalence between the FA groups at each age bracket showed significant differences between the noFAand likelyFA groups over all age brackets. When comparing eczema prevalence of the noFA group to indeterminateFA , only the last age bracket did not show a significant difference. The asthma prevalence showed significant differences across all age brackets, when comparing noFA and likelyFA , but no significant differences were observed between noFA andindeterminateFA. The same was seen for hay fever, with significant differences between noFA and likelyFA , but not between noFA and indeterminateFA .