| PS 15 | PS 12 | PS 9 | PS 6 | PS 3 |
---|---|---|---|---|---|
Tidal volume/kg (mL/kg) | 7.2 ± 0.6 | 6.6 ± 0.6 | 6.2 ± 0.5* | 6.1 ± 0.5* | 5.8 ± 0.4*$ |
Respiratory rate (breaths/min) | 24 ± 2 | 25 ± 2 | 27 ± 2 | 27 ± 2* | 27 ± 2* |
Minute ventilation (L) | 10.9 ± 0.8 | 10.6 ± 0.8 | 10.5 ± 0.9 | 10.6 ± 1.0 | 10.3 ± 0.9* |
Inspiratory time (s) | 0.86 ± 0.07 | 0.83 ± 0.06 | 0.83 ± 0.07 | 0.86 ± 0.07 | 0.84 ± 0.06 |