Time constant (τers) and resistance (Rrs) of the respiratory system of the consecutive volume slices at different positive end-expiratory pressure PEEP
| PEEP cmH2O | 0 | 5 | 10 | 15 |
| Volume silice | ||||
| τers s | ||||
| 1 | 0.45±0.1# | 0.39±0.1 | 0.35±0.2 | 0.34±0.1 |
| 2 | 0.48±0.2# | 0.37±0.1 | 0.41±0.1 | 0.36±0.1 |
| 3 | 0.42±0.2# | 0.42±0.2 | 0.46±0.2 | 0.36±0.1 |
| 4 | 0.50±0.2# | 0.40±0.1 | 0.44±0.2 | 0.40±0.2 |
| 5 | 0.68±0.2 | 0.42±0.1¶ | 0.45±0.2¶ | 0.39±0.1¶ |
| Rrs cmH2O·L−1·s−1 | ||||
| 1 | 10.3±2.6# | 8.8±2.9 | 8.9±3.2 | 10.8±3.5# |
| 2 | 8.7±3.3# | 7.3±2.4 | 8.9±2.0 | 8.5±2.1 |
| 3 | 7.5±2.8# | 7.1±1.7 | 8.4±2.1 | 7.1±2.0 |
| 4 | 8.8±1.5# | 6.7±1.7 | 7.3±1.1 | 6.7±1.9 |
| 5 | 14.4±2.6 | 7.2±1.4¶ | 7.0±1.7¶ | 6.6±2.2¶ |
#: significantly different from the fifth volume slice
¶: significantly different from the value of the corresponding volume slice with zero PEEP