Results
Baseline characteristics of asthma versus non-asthma
subjects in the
sample
Of the 3,101 subjects who participated in the WSAS clinical
investigations prior to COVID-19, 1,206 had never had asthma, while the
remaining 1,895 who had ever had asthma were included in the phenotype
derivation. General characteristics of subjects with asthma and without
asthma, respectively, can be seen in Table 1. Those who had ever had
asthma were younger, had a higher proportion of women, were more obese,
had poorer lung function, more inflammation, and more respiratory
symptoms, and were less atopic, had a higher proportion of family
history of asthma/allergy, less rhinitis, and more COPD than those who
had never had asthma.