Inhaled corticosteroids plus standard care probably leads to lower admission to hospital or death compared with standard care (with or without placebo) (moderate certainty).
Inhaled steroids showed no clear difference in death or BPD at 28 days compared with systemic corticosteroids (low certainty).
Inhaled steroids showed no clear difference in death or BPD at 36 weeks' postmenstrual age among all randomised compared with systemic corticosteroids (moderate certainty).
Inhaled steroids showed no clear difference in death or BPD at 36 weeks' postmenstrual age compared with systemic steroids (moderate certainty).
Inhaled steroids showed no clear difference in death or moderate/severe disability at 7 years compared with systemic steroids (moderate certainty).
Early inhaled steroids (< 2 weeks) probably leads to lower death by, or CLD at, 36 weeks' PMA Death or oxygen dependency at 36… compared with placebo (among all randomised) (moderate certainty).