| Device | duration of SI seconds | maximum IP cmH2O | average IP cmH2O |
|---|---|---|---|
| SIB 1 | 6.2 (1.6) | 30.0 (5.8) | 17.2 (3.3) |
| SIB 2 | 13.9 (7.9) | 24.7 (4.7) | 17.5 (3.5) |
| SIB 3 | 4.6 (1.2) | 23.6 (7.7) | 12.5 (4.7) |
| SIB 4 | 33.3 (2.3) | 26.4 (4.6) | 20.9 (2.5) |
| T-piece | 32.6 (0.9) | 20.0 (0) | 19.6 (0.5) |