Table 1.
Participant characteristics
| RIPC group | Control group | |
|---|---|---|
| (n = 72) | (n = 70) | |
| Age (years)* | 72·3(8·6) | 72·9(8·1) |
| Sex ratio (M : F) | 63 : 9 | 64 : 6 |
| BMI (kg/m2)† | 26·7 (25·3, 28·0) | 28·3 (27·2, 29·4) |
| Smoker | ||
| Yes | 39 (54) | 30 (43) |
| No | 24 (33) | 29 (41) |
| Unknown | 9 (13) | 11 (16) |
| Previous medical record‡ | ||
| Ischaemic heart disease | 20 (28) | 15 (21) |
| Myocardial infarction | 15 (21) | 13 (19) |
| CABG/PCI | 9 (13) | 16 (23) |
| Stroke/TCI | 8 (11) | 9 (13) |
| Vascular surgery | 3 (4) | 2 (3) |
| Diabetes | 5 (7) | 8 (11) |
| Atrial fibrillation | 10 (14) | 11 (16) |
| COLD | 11 (15) | 12 (17) |
| Cancer | 1 (1) | 7 (10) |
| Hypertension | 40 (56) | 47 (67) |
| Preoperative medication | ||
| Antiplatelet | 29 (40) | 23 (33) |
| Anticoagulant | 3 (4) | 3 (4) |
| Lipid‐lowering | 29 (40) | 28 (40) |
Values in parentheses are percentages unless indicated otherwise; values are *mean(s.d.) and †mean (95 per cent c.i.).
‡
The previous medical record was unknown for six patients (3 in each group). RIPC, remote ischaemic preconditioning; CABG, coronary artery bypass grafting; PCI, percutaneous coronary intervention; TCI, transient cerebral ischaemia; COLD, chronic obstructive lung disease.