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Type of ventilation and symptoms at onset of pneumomediastinum/pneumothorax.
| Overall Cohort (Number) |
Mild–Moderate ARDS and Pneumomediastinum/Pneumothorax (Number) |
Severe ARDS and Pneumomediastinum/Pneumothorax (Number) |
|
|---|---|---|---|
| Mask CPAP | 27 | 15 | 12 |
| Helmet CPAP | 11 | 5 | 6 |
| HFNC | 7 | 6 | 1 |
| Duration of NIV before complication (median days and IQR) | 8 (5–12) | 8.5 (6–13) | 7 (5–10) |
| Symptoms | 28 | 14 | 14 |
| Subcutaneous emphysema | 16 | 5 | 11 |
| No symptoms | 17 | 11 | 6 |
