• Monica B Reddy and Ronina A Covar.
• aNational Jewish Health, Department of Pediatrics bUniversity of Colorado Denver Health Sciences Center, Denver, Colorado, USA.
• Curr Opin Allergy Clin Immunol. 2016 Apr 1; 16 (2): 127-34.

Purpose Of ReviewThis review describes the literature over the past 18 months that evaluated childhood asthma phenotypes, highlighting the key aspects of these studies, and comparing these studies to previous ones in this area.Recent FindingsRecent studies on asthma phenotypes have identified new phenotypes on the basis of statistical analyses (using cluster analysis and latent class analysis methodology) and have evaluated the outcomes and associated risk factors of previously established early childhood asthma phenotypes that are based on asthma onset and patterns of wheezing illness. There have also been investigations focusing on immunologic, physiologic, and genetic correlates of various phenotypes, as well as identification of subphenotypes of severe childhood asthma.SummaryChildhood asthma remains a heterogeneous condition, and investigations into these various presentations, risk factors, and outcomes are important since they can offer therapeutic and prognostic relevance. Further investigation into the immunopathology and genetic basis underlying childhood phenotypes is important so therapy can be tailored accordingly.

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