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.