TABLE 3.
Noninvasive ventilation (NIV) parameters and monitoring at day 30 for the whole cohort
| Total | At-home patients | Inpatients | p-value | |
| NIV parameters | ||||
| Patients, n | 221 | 179 | 42 | |
| IPAP (cmH20) | 12.2±2.31 | 11.8±1.98 | 14±2.81 | <0.001 |
| EPAP (cmH20) | 6.7±1.49 | 6.66±1.48 | 6.85±1.53 | 0.465 |
| Back-up respiratory rate (acts per minute) | 13.5±1.25 | 13.4±1.17 | 14.2±1.36 | <0.001 |
| Rise time (ms) | 428±138 | 439±134 | 372±149 | 0.007 |
| Trigger (L·min−1) | 5.89±0.88 | 5.97±0.62 | 5.53±1.62 | 0.007 |
| Cycling (%IPF) | 23.4±5.67 | 23.1±5.24 | 25±7.66 | 0.082 |
| tI min (s) | 0.664±0.640 | 0.644±0.570 | 0.769±0.922 | 0.293 |
| tI max (s) | 1.78±0.305 | 1.80±0.289 | 1.70±0.371 | 0.078 |
| NIV monitoring | ||||
| Days (n) | 31.4±10.1 | 30.6±7.07 | 35.3±18.2 | 0.009 |
| Days without use (n) | 4.26±8.66 | 3.88±7.01 | 5.95±13.8 | 0.172 |
| Patients with fractional use (n) | 23 (10) | 10 (6) | 13 (31) | <0.001 |
| NIV use (h) | 6.15±3.23 | 5.99±2.87 | 6.85±4.48 | 0.126 |
| VT (mL) | 439±118 | 427±89.7 | 490±193 | 0.002 |
| Respiratory rate (acts per minute) | 16.8±3.13 | 16.5±2.73 | 18±4.32 | 0.007 |
| Leaks (L·min−1) | 5.57±15.1 | 3.69±10.7 | 13.7±25.6 | <0.001 |
| Leaks >24 L·min−1 (n) | 10 (5) | 4 (2) | 6 (14) | <0.001 |
| AHI | 6.52±9.36 | 5.48±8.77 | 11.1±10.6 | <0.001 |
| AHI >10 (n) | 41 (19) | 27 (15) | 14 (33) | 0.004 |
12 deaths before day 30 were excluded from analysis. Data are presented as mean±sd or n (%) unless otherwise stated. AHI: apnoea–hypopnoea index; EPAP: expiratory positive airway pressure; IPAP: inspiratory positive airway pressure; IPF: inspiratory peak flow; VT: tidal volume; tI: inspiratory time.