Baseline characteristics in 3417 patients with porcine aortic valve bioprostheses according to ABO blood group
| Variable | Blood group | P value | Standardised difference (%) | |
| A or AB n=1724 | B or O n=1693 | |||
| Age, years (mean (SD)) | 76.2 (7.1) | 76.0 (7.5) | 0.328 | 3.3 |
| Female | 791 (45.9) | 812 (48.0) | 0.236 | 4.2 |
| Blood group | ||||
| A | 1554 (90.1) | |||
| AB | 170 (9.9) | |||
| B | 337 (19.9) | |||
| O | 1356 (80.1) | |||
| Not married | 549 (38.7) | 572 (41.4) | 0.160 | 5.5 |
| Non-Nordic birth region | 58 (4.1) | 60 (4.3) | 0.825 | 1.2 |
| Education | 0.276 | 6.6 | ||
| <10 years | 632 (52.7) | 613 (52.5) | ||
| 10–12 years | 408 (34.0) | 375 (32.1) | ||
| >12 years | 159 (13.3) | 180 (15.4) | ||
| Household disposable income, kSEK (median (Q1, Q3)) | 182 (126, 265] | 177 (122, 256] | 0.193 | 6.3 |
| Body mass index, kg/m2 (mean (SD)) | 26.0 (4.2) | 26.1 (4.5) | 0.541 | 2.2 |
| Diabetes | 263 (15.3) | 277 (16.4) | 0.401 | 3.0 |
| Atrial fibrillation | 294 (17.1) | 274 (16.2) | 0.525 | 2.3 |
| Hypertension | 404 (23.4) | 384 (22.7) | 0.630 | 1.8 |
| Hyperlipidaemia | 153 (8.9) | 103 (6.1) | 0.002 | 10.6 |
| Stroke | 200 (11.6) | 174 (10.3) | 0.236 | 4.2 |
| Peripheral vascular disease | 184 (10.7) | 145 (8.6) | 0.042 | 7.2 |
| Chronic pulmonary disease | 126 (7.3) | 142 (8.4) | 0.267 | 4.0 |
| Prior myocardial infarction | 335 (19.4) | 271 (16.0) | 0.010 | 9.0 |
| Prior PCI | 101 (5.9) | 80 (4.7) | 0.161 | 5.1 |
| Prior major bleeding event | 143 (8.3) | 162 (9.6) | 0.213 | 4.5 |
| Prior venous thromboembolism | 39 (2.3) | 33 (1.9) | 0.605 | 2.2 |
| Alcohol dependency | 21 (1.2) | 23 (1.4) | 0.832 | 1.2 |
| Liver disease | 23 (1.3) | 18 (1.1) | 0.569 | 2.5 |
| Cancer | 190 (11.0) | 171 (10.1) | 0.412 | 3.0 |
| eGFR, mL/min/1.73 m2 | 0.273 | 8.3 | ||
| >60 | 894 (59.1) | 821 (56.5) | ||
| 45–60 | 389 (25.7) | 411 (28.3) | ||
| 30–45 | 179 (11.8) | 161 (11.1) | ||
| 15–30 | 36 (2.4) | 40 (2.8) | ||
| <15 or dialysis | 14 (0.9) | 21 (1.4) | ||
| Heart failure | 393 (22.8) | 420 (24.8) | 0.180 | 4.7 |
| LV ejection fraction | 0.348 | 6.5 | ||
| >50% | 731 (70.4) | 690 (69.7) | ||
| 30%–50% | 259 (24.9) | 239 (24.1) | ||
| <30% | 49 (4.7) | 61 (6.2) | ||
| Cardiac implantable electronic device | 38 (2.2) | 47 (2.8) | 0.335 | 3.7 |
| Endocarditis | 48 (2.8) | 48 (2.8) | 1.000 | 0.3 |
| Emergent operation (%) | 25 (1.5) | 27 (1.6) | 0.837 | 1.2 |
Data are n (%) unless otherwise noted.
kSEK=1000 Swedish krona .
eGFR, estimated glomerular filtration rate; LV, left ventricular; PCI, percutaneous coronary intervention.