Derived asthma phenotypes by symptom profiles, allergic status,
and comorbidities
Cluster 1 had the highest reports of respiratory symptoms but had the
lowest rates of allergic sensitization and family history of asthma or
allergy. It also had the highest proportion of individuals with asthma
related nasal polyps, rhinitis, and COPD (Figure 1: C ). On the
other hand, cluster 4 had the least respiratory symptoms, the highest
rate of allergic sensitization, and the lowest proportion of individuals
with co-existing COPD (Figure 1: C ). Clusters 2 and 3 were
in-between clusters 1 and 4 in these aspects.