Figure 2.

Overall survival of eligible study participants receiving nasal oxygen vs. bCPAP. (Left) Fraction of eligible study participants who survived to discharge and received nasal oxygen or bCPAP. When treated with bCPAP, the survival rate of infants with severe respiratory distress is significantly higher than for those treated with nasal oxygen (p = 0.018). Without adjustment, bCPAP is associated with a 3.1-fold increase in odds of survival (confidence interval 1.2–8.1, significance = 0.02). (Right) Kaplan-Meier survival curves showing cumulative survival vs. days since treatment initiation for infants with severe respiratory distress treated with bCPAP (n = 62) and those treated with nasal oxygen (n = 25).

doi:10.1371/journal.pone.0086327.g002