In the univariate analysis, IL-1β (> 10.84 pg/ml), iNOS (> 43.63 pg/ml), and vimentin (> 486.0 pg/ml) were associated with the development of comorbidity of PAR and asthma (p = 0.003, 0.038 and 0.005, respectively). Here, NOS2 is linked to asthma.