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Baseline characteristics of the subjects
| Age (yr) | 70 (64–79) |
| Sex (M/F) | 11/7 |
| BMI (kg・m-2) | 24 (21.9–24.9) |
| Type of surgery (%) | |
| Coronary artery bypass grafting | 11 |
| Aortic valve replacement for aortic valve stenosis | 7 |
| Aortic valve replacement for aortic regurgitation | 2 |
| Thoracic ascending aortic graft replacement | 1 |
| Comorbidities (%) | |
| Hypertension | 18 |
| Diabetes mellitus | 9 |
| Renal insufficiency | 10 |
| Dialysis | 2 |
N = 18. Values are medians (interquartile range) or numbers
BMI Body mass index
