Inspiratory and expiratory times, and relative tidal volumes, related to the onset of NIPPV pressure peaks
| Parameter | No pressure peak occurred | Onset of NIPPV pressure peak during inspiration | Onset of NIPPV pressure peak during expiration | Median duration or size of phase | Proportion of time spent in this phase | Proportion of NIPPV pressure peaks delivered during this phase |
|---|---|---|---|---|---|---|
| Inspiratory time (s) | 0.28 | 0.34 | 0.29 | 0.29 | 36.3% | 40.0% |
| Expiratory time (s) | 0.52 | 0.55 | 0.59 | 0.51 | 63.7% | 60.0% |
| Relative tidal volume (mV) | 0.33 | 0.38 | 0.34 | 0.34 | – | – |
NIPPV, nasal intermittent positive pressure ventilation.