Table 1. Patient information.
| Characteristic | Data |
|---|---|
| Patient demographics | |
| Total SWAP patients | 29 |
| Male | 21 (72.4%) |
| Female | 8 (27.6%) |
| Age | 55 (IQR, 42–63) |
| Past medical history | |
| No past medical history | 10 (34.5%) |
| Hypertension | 8 (27.6%) |
| Asthma | 6 (20.7%) |
| COPD | 1 (3.4%) |
| Diabetes | 7 (24.1%) |
| Coronary artery disease | 2 (6.9%) |
| Obesity | 15 (51.7%) |
| Average BMI | 30.8 (IQR, 26.3–32.7) |
| Clinical features and outcomes | |
| PIP | 32 (range, 24–38) |
| MAP | 21 (range, 15–24) |
| PEEP | 13 (range, 10–15) |
| Massive SQE | 23 (79.3%) |
| Sub-massive SQE | 6 (20.7%) |
| Improvement in SQE | 12 (41.4%) |
| Progression to pneumothorax | 2 (6.9%) |
SWAP, sub-cutaneous emphysema without associated pneumothorax; IQR, interquartile range; PMH, past medical history; COPD, chronic obstructive pulmonary disease; BMI, body mass index; PIP, peak inspiratory pressure; MAP, mean airway pressure; PEEP, positive end expiratory pressure; SQE, sub-cutaneous emphysema.