4.1 Primary findings
In the largest population-based cohort study on this topic to date,
including 6,852 children/adolescents, we
identified the association of
ever eczema and eczema phenotypes with the presence of FA, asthma and
hay fever. “Very early onset –
persistent” eczema showed the strongest associations across all
investigated allergic diseases and thus represents the phenotype at
highest risk for developing allergic multimorbidity. Moreover,
participants with FA observed a significantly higher prevalence of
eczema, asthma and hay fever throughout childhood, comparing them to
participants without FA.