Characteristics of procedural data
| Thoracentesis indication | |
| Diagnostic and therapeutic, n (%) | 292 (100) |
| Service performing thoracentesis | |
| Interventional radiology, n (%) | 279 (95.5) |
| Pulmonology, n (%) | 13 (4.5%) |
| Imaging | |
| Ultrasound guidance during thoracentesis, n (%) | 281 (96.2) |
| Chest X rayX-ray following thoracentesis, n (%) | 251 (86%) |
| Mean amount of pleural fluid drained (±SD) | 877 mL (±705 mL) |
| Complications | |
| Rate of pneumothorax, n (%) | 17 (5.8%) |
| Rate of haemothorax, n (%) | 0 |
| Rate of pneumothorax requiring chest tube intervention n (%) | 8 (4.7%) |