Table 1 Severity-based criteria of diagnosis of CLD at 36 weeks’ PMA
Received respiratory support and/or supplementary oxygen for more than 28 days, cumulatively, and the following: | |
|---|---|
Mild CLD | • Breathing room air |
Moderate CLD | • Require < 30% oxygen (or low flow 0.01–1.0 L/ min), not receiving any respiratory support |
Severe CLD | • Require ≥ 30% oxygen (or low flow ≥ 1.1 L/min), still receiving respiratory support (ventilation, continuous positive airway pressure [CPAP], high flow oxygen) |