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Table 2 Primary/Secondary outcomes

From: Effects of antenatal corticosteroids in twin neonates with late preterm birth (ACTWIN [Antenatal Corticosteroids in TWIN late preterm neonates] trial): study protocol for a randomized controlled trial

Primary outcome (within 72 h after delivery)

Secondary outcome (before discharge)

Severe respiratory morbidities

Mild respiratory morbidities

 CPAP for ≥12 continuous hours

 CPAP for ≥2 continuous hours

 High flow nasal cannula for ≥12 continuous hours

 High flow nasal cannula for ≥2 continuous hours

 Fraction of inspired oxygen of ≥0.3 for ≥24 continuous hours

 Fraction of inspired oxygen of ≥0.3 for ≥2 continuous hours

 Mechanical ventilation use

Respiratory distress syndrome

 ECMO use

Transient tachypnoea of the newborn

Stillbirth

Apnoea

Neonatal death

Bronchopulmonary dysplasia

Pneumonia

Surfactant use

Pulmonary air leak

Necrotizing enterocolitis

Intraventricular hemorrhage

Sepsis

Hyperbilirubinemia

Seizures / encephalopathy

Patent ductus arteriosus

Hypoglycaemia

Feeding difficulty

Need for resuscitation at birth

Neonatal death

Maternal complication

 Chorioamnionitis

 Postpartum endometritis

  1. CPAP continuous positive airway pressure, ECMO extracorporeal membranes oxygenation