POSTN and bronchiolitis: Children with detection of nasal periostin at admission for bronchiolitis, showed lower frequency of ever use of short-acting beta2-agonists (SABA) (p = 0.04), lower prevalence of current asthma (p = 0.02), and less prescription of SABA and maintenance asthma treatment in the past 12 months (p = 0.002 and p = 0.02, respectively) (Table 5).