To study the relationship between serum cortisol and dehydroepiandrosterone sulphate (DHEAS) concentrations and death or bronchopulmonary dysplasia at 36 weeks of postmenstrual age in preterm infants.
Prospective measurement of cord, day of birth (D0) and day 4 (D4) serum cortisol and DHEAS concentrations and performance of low-dose (LD) ACTH tests in 89 preterm infants with gestational age