Table 1 Severity-Based Diagnostic Criteria for BPD
Time point of assessment: | 36 weeks postmenstrual age |
Therapy with oxygen > 21% and/or respiratory support for ≥ 28 days and the following: | |
Mild BPD; | Baby is breathing room air |
Moderate BPD; | Baby is in 22–29% oxygen, or 0.01–1.0 L/min |
Severe BPD; | FiO2 ≥ 0.3, or low flow oxygen ≥ 1.1 L/min, or the baby is receiving any respiratory support (ventilation, CPAP, or high flow oxygen therapy) to achieve saturations of ≥ 91% |