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Baseline characteristics. Values are given as number, median (IQR), or mean (SD)
| Treatment group (n = 40) | Control group (n = 40) | |
| Gender: M/F | 18/22 | 16/24 |
| Age, years | 60 (15) | 66 (14) |
| Height, cm | 173 (165–178) | 171 (165–175) |
| Weight, kg | 80 (16) | 79 (14.8) |
| BMI | 26 (24–30) | 27 (25–30) |
| Hb, mmol/L | 8.9 (0.7) | 8.8 (0.8) |
| ASA physical status I/II/III | 15/24/1 | 11/29/0 |
| Duration of surgery, min | 70 (17) | 71 (19) |
