3.1 Study population
Data on eczema and FA was available for 6,852 participants. Of these, 6,638 could be assigned to one of the eczema phenotypes(Figure 1) . Among the included 6,852 children, 27.0 % reported eczema, 9.9 % asthma and 8.2 % hay fever. The distribution of eczema phenotypes and covariates is presented in Table 2(Supplementary Figure 2A). “Very early onset – remitting” eczema showed the highest prevalence, followed by “Early onset – remitting” and “Late onset”. In total, 6.2 % of participants were classified as having likelyFA and 1.2 % as havingindeterminateFA (Supplementary Figure 2B). The average onset age for eczema, asthma and hay fever was 2.7 (SD 2.7) years, 3.4 (SD 3.9) years and 7.4 (SD 4.4) years, respectively.