Predictor Groups
Among the 101 children (59.4%) who had any pathogen identified on respiratory culture during the 3 years post-tracheostomy, 48.5% had anyP. aeruginosa identified specifically (Figure 1a ). Six children met criteria for chronic P. aeruginosa identification (12.2% of P. aeruginosa group and 3.5% of the entire cohort).
Children with pathogens identified had median of 2 cultures with pathogens (IQR: 1-3, range 1-27) during the 3 years post-tracheostomy; those with P. aeruginosa identified had median of 1 culture identifying P. aeruginosa (IQR: 1-2, range 1-6).