Table 3.
Intervention class of 395 randomised controlled trials included in this study
| Intervention class | No (%) trials |
|---|---|
| 1) Operative intervention; non-device (total): | 42 (11) |
| 1A Operative versus non-operative intervention | 13 (3) |
| 1B Surgical technique (non-device) | 29 (7) |
| 2) Intervention with device (total): | 106 (27) |
| 2A Implantable therapeutic device (permanent) | 44 (11) |
| 2B Non-implantable therapeutic device | 18 (5) |
| 2C Operative (non-therapeutic, temporary, or access) or diagnostic device | 44 (11) |
| 3) Pharmacological interventions (total): | 247 (63) |
| 3A (i) Perioperative analgesics | 75 (19) |
| 3A (ii) Perioperative anti-emetics | 8 (2) |
| 3B Reduction and prevention of infection | 11 (3) |
| 3C Reduction and prevention of haemorrhage | 28 (7) |
| 3D Fluid management | 6 (2) |
| 3E Nutrition | 14 (4) |
| 3F Reduction and prevention of thrombosis | 12 (3) |
| 3G Reduction and prevention of other disease-specific morbidity | 45 (11) |
| 3H Adjuvant therapeutic treatment | 18 (5) |
| 3I Other | 30 (8) |