Conclusion
In a representative sample of adults who had ever had asthma, four
clinically relevant asthma phenotypes can be seen, which could be
distinguished on the basis of age at asthma onset, level of severity,
and other characterization, including demographics, risk factors,
triggers, lung function, respiratory symptom profiles, and inflammation
markers. The derived asthma phenotypes provide a novel setting for
catalyzing important asthma research that will include detailed
profiling of the immunological aspects of the phenotypes, modelling
putative risk factors, characterizing their comorbidity profiles, and
assessing future clinical outcomes and societal burden of each asthma
phenotype.