Patient characteristics
| k | n | % | |
|---|---|---|---|
| %, percentage of patients with this characteristic in treatment groups reporting this characteristic; CABG, coronary artery bypass grafting; CVD, cardiovascular disease; F, female; k, number of studies reporting this characteristic; LVEF, left ventricular ejection fraction; M, male; n, number of patients in groups reporting this characteristic; MI, myocardial infarction; NYHA, New York Heart Association; PTCA, percutaneous transluminal coronary angioplasty. | |||
| Total | 176 | 205667 | 100 |
| Mean age | 176 | 165578 | Mean 62.8 years |
| Age >70 | 25 | 48839 | 30.1% |
| Sex (M/F) | 168 | 161076/36441 | 81.6%/18.4% |
| NYHA class III–IV | 31 | 74674 | 67.6% |
| Mean LVEF | 83 | 52563 | 55.1% |
| Low ejection fraction (<35–40%) | 53 | 108954 | 9.9% |
| Comorbidities | |||
| Diabetes | 118 | 174049 | 24.6% |
| Renal dysfunction | 49 | 75488 | 5.0% |
| Hypertension | 95 | 78783 | 52.1% |
| History of stroke or CVD | 54 | 92662 | 11.5% |
| Previous MI | 91 | 118897 | 46.7% |
| Previous CABG/heart surgery | 101 | 158638 | 5.8% |
| Previous revascularisation (PTCA) | 21 | 33499 | 6.1% |
| Unstable angina | 40 | 45896 | 32.1% |
| Hypercholesterolaemia | 39 | 39372 | 54.2% |
| History of smoking | 57 | 92937 | 36.6% |
| Operative data | |||
| Urgent/emergency CABG | 115 | 158719 | 28.1% |
| Warm blood cardioplegia | 65 | 29293 | 19.8% |
| Mean number of grafts | 111 | 69128 | 3.2 (range 1–4.5) |