Objective: To describe temporal changes in inhaled nitric oxide (iNO) use in English neonatal units between 2010 and 2015.
Design: Retrospective analysis using data extracted from the National Neonatal Research Database.
Setting: All National Health Service neonatal units in England.
Patients: Infants of all gestational ages born 2010–2015 admitted to a neonatal unit and received intensive care.
Main outcome measures: Proportion of infants who received iNO; age at initiation and duration of iNO use.
Original content: Health Data Research Innovation Gateway