It is very uncertain whether prophylactic or very early CPAP changes failed treatment defined as recurrent apnoea, hypoxia, hypercarbia… compared with supportive care (very low certainty).
Prophylactic or very early CPAP showed no clear difference in bronchopulmonary dysplasia at 36 weeks defined as oxygen dependency… compared with supportive care (moderate certainty).
Prophylactic or very early CPAP showed no clear difference in death at any time compared with supportive care (moderate certainty).
Prophylactic or very early CPAP showed no clear difference in combined outcome of death and bronchopulmonary dysplasia defined as… compared with supportive care (low certainty).
Prophylactic or very early CPAP showed no clear difference in pulmonary air leak defined as pneumothorax compared with supportive care (low certainty).
Prophylactic or very early CPAP showed no clear difference in intraventricular haemorrhage grade 3 or 4 compared with supportive care (low certainty).
The review found no eligible studies for this question.