Parameters requested from individual studies
| Parameter | Categories/unit | |
| Demographics | Age* | years |
| Gender* | M/F | |
| Weight | kg | |
| Height | m | |
| BMI | kg/m² | |
| Creatinine | mg/dL or µmol/L | |
| Creatinine clearance* | mL/min | |
| Diabetes mellitus | y/n | |
| Liver disease | y/n | |
| LVEF* | % | |
| Euroscore 2 | ||
| UFH or LMWH or fondaparinux (within 24 hours preop) | y/n | |
| Procedural variables | Urgency* | Elective/urgent/emergency/salvage |
| CABG indication | Stable CAD/NSTEMI/STEMI | |
| CPB time | minutes | |
| No of arterial grafts | ||
| No of distal anastomoses | ||
| Tranexamic acid during surgery | y/n | |
| Hb preoperative | g/L | |
| Platelets preoperative | x109/L | |
| Institutional protocol for treating postpump bleeding | y/n | |
| ASS perioperative continuation | y/n | |
| ASS cessation prior to surgery | days | |
| Clopidogrel preoperative | y/n | |
| Clopidogrel cessation prior to surgery | days | |
| Prasugrel preoperative | y/n | |
| Prasugrel cessation prior to surgery | days | |
| Ticagrelor preoperative | y/n | |
| Ticagrelor cessation prior to surgery | days | |
| Outcome | Chest tube drainage volume within 24 hours† | ml |
| Reoperation due to bleeding | y/n | |
| Intracranial bleeding within 48 hours perioperatively | y/n | |
| No of transfused red blood cell units within 48 hours from incision | ||
| Postoperative MI | y/n | |
| In-hospital mortality | y/n | |
| 30-day mortality | y/n |
*Part of euroscore II.
†If unavailable chest tube drainage volume obtained during shorter observation period (define observation period).
ASS, Aspirin; BMI, body mass index; CABG, coronary artery bypass grafting; CAD, Coronary Artery Disease; CPB, Cardiopulmonary Bypass; Hb, Haemoglobin; LMWH, Low Molecular Weight Heparin; LVEF, Left ventricular ejection fraction ; MI, Myocardial infarction; NSTEMI, Non-ST-Elevation Myocardial Infarction; STEMI, ST-Elevation Myocardial Infarction; UFH, Unfractionated heparin.