Secondary outcomes
| Outcomes | No. (%)* infants with outcome 2010–2018 | Annual % change (95% CI) | P value |
| Mechanical ventilation | 3371 (23.0) | −0.3% (−1.6 to 1.0) | 0.66 |
| Pneumothorax requiring drainage | 469 (3.2) | 4.0% (0.3 to 7.7) | 0.03 |
| Surfactant use | 750 (5.1) | 7.8% (4.8 to 10.9) | <0.0001 |
| Death | 397 (2.7) | −1.7% (−5.4 to 2.2) | 0.39 |
*N=14 656 term inborn livebirths registered with ANZNN.
ANZNN, Australian and New Zealand Neonatal Network.