| Group A (n = 182) | Group B (n = 264) | Group C (n = 60) | |
| Pimax† | 50.5 (27.8; 4–139) | ||
| Pimax* | 131.0 (72.1; 9–378) | ||
| Sniff Pnasal† | 57.8 (27.4; 8–143) | ||
| Sniff Pnasal* | 120.7 (57.4; 16–286) | ||
| Sniff Poes† | 65.1 (27.2; 6–152) | ||
| Sniff Poes* | 123.0 (51.2; 11–276) | ||
| Sniff Pdi† | 69.6 (35.8; 0–170) | ||
| Sniff Pdi* | 81.8 (46.2; 0–243) | ||
| Twitch Pdi† | 14.5 (10.3; 0–56) | ||
| Twitch Pdi* | 80.7 (57.2; 0–309) | ||
| Pemax† | 86.0 (34.8; 19–165) | ||
| Pemax* | 114.7 (44.9; 32–274) | ||
| Cough Pgas† | 154.7 (80.8; 12–320) | ||
| Cough Pgas* | 127.6 (65.4; 13–240) | ||
| Twitch T10† | 27.7 (31.8; 0–116) | ||
| Twitch T10* | 172.8 (198.9; 0–724) |
Values are presented as mean (SD; minimum – maximum) for all tests except for Twitch T10 which is reported as median (interquartile range; minimum – maximum).
Pimax, maximum inspiratory pressure; Pnasal, nasal pressure; Poes, oesophageal pressure; Pdi, transdiaphragmatic pressure, Pemax, maximum expiratory pressure; Pgas, gastric pressure.
Group A, inspiratory muscle tests; group B, diaphragm strength tests; group C, expiratory muscle tests.
*Percentage of cut off.
†cm H2O.