Baseline characteristics
| Variable | Forced air warming (n=71), mean (SD) or n (%) | Passive warming (n=69), mean (SD) or n (%) |
| Age | 72 (13) | 73 (13) |
| Males | 49 (69) | 44 (64) |
| BMI | 27 (5) | 27 (6) |
| Charlson Comorbidity Score | 1.6 (1.6) | 1.8 (2.2) |
| ASA class >2 | 64 (90) | 62 (90) |
| Procedure duration (min) | 57 (39) | 56 (29) |
| PCI | 16 (23) | 16 (23) |
| Cardiac implantable electronic device | 34 (48) | 32 (46) |
| Electrophysiology study and/or ablation of cardiac arrhythmia | 8 (11) | 7 (10) |
| Peripheral intervention | 8 (11) | 9 (13) |
| Structural heart procedure | 5 (7) | 5 (7) |
| Monitored anaesthesia care | 34 (48) | 33 (48) |
| Propofol used | 27 (38) | 29 (42) |
| Total midazolam dose | 2.1 (0.9) | 2 (0.9) |
| Total fentanyl dose | 50 (35) | 45 (32) |
| Propofol bolus amount | 43 (88) | 38 (81) |
| Propofol target controlled infusion used | 9 (13) | 9 (13) |
| Room temperature | 19.8 (1.0) | 20 (1.1) |
ASA, American Society of Anesthesiologists; BMI, body mass index; PCI, percutaneous coronaryintervention.