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- W4283120033 abstract "Previous studies have indicated the limitations of body mass index for defining disease phenotypes. The description of asthma phenotypes based on body composition (BC) has not been largely reported.To identify and characterize phenotypes based on BC parameters in patients with asthma.A study with two prospective observational cohorts analyzing adult patients with stable asthma (n = 541 for training and n = 179 for validation) was conducted. A body composition analysis was performed for the included patients. A cluster analysis was conducted by applying a 2-step process with stepwise discriminant analysis. Logistic regression models were used to evaluate the association between identified phenotypes and asthma exacerbations (AEs). The same algorithm for cluster analysis in the independent validation set was used to perform an external validation.Three clusters had significantly different characteristics associated with asthma outcomes. An external validation identified the similarity of the participants in training and the validation set. In the training set, cluster Training (T) 1 (29.4%) was patients with undernutrition, cluster T2 (18.9%) was intermediate level of nutrition with psychological dysfunction, and cluster T3 (51.8%) was patients with good nutrition. Cluster T3 had a decreased risk of moderate-to-severe and severe AEs in the following year compared with the other two clusters. The most important BC-specific factors contributing to being accurately assigned to one of these three clusters were skeletal muscle mass and visceral fat area.We defined three distinct clusters of asthma patients, which had distinct clinical features and asthma outcomes. Our data reinforced the importance of evaluating BC to determining nutritional status in clinical practice." @default.
- W4283120033 created "2022-06-20" @default.
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- W4283120033 date "2022-06-17" @default.
- W4283120033 modified "2023-10-15" @default.
- W4283120033 title "Body Composition-Specific Asthma Phenotypes: Clinical Implications" @default.
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- W4283120033 doi "https://doi.org/10.3390/nu14122525" @default.
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