Main Outcomes
The primary outcome of this study was diagnostic accuracy of POCUS for identifying tracheal versus esophageal intubations in newborns compared to a composite of standard-of-care methods. The secondary outcome was the time difference in determining ETT position between the POCUS user and standard-of-care methods. The tertiary outcomes were the agreement between POCUS users and standard-of-care methods, the level of agreement between POCUS users and a POCUS expert, and the level of agreement between the POCUS expert and standard-of-care methods.