Document Classification

Section Type: RESULTS

Text: During the 72 hours after the initial surfactant treatment, the average fraction of inspired oxygen (+ / - SEM) was 0. 47 + / - 0. 01 for Exosurf - and 0. 39 + / - 0. 01 for infasurf-treated infants (difference, 0. 08 ; 95 % confidence interval, 0. 06 to 0. 10 ; p < 0. 0001) ; the average mean airway pressure (+ / - SEM) was 8. 6 + / - 0. 1 cm H2O ; for Exosurf - and 7. 2 + / - 0. 1 cm H2O for Infasurf-treated infants (difference, 1. 4 cm H2O ; 95 % confidence interval, 1. 0 to 1. 8 cm H2O ; p < 0. 0001).