Table 6.
Baseline Characteristics in 960 Propensity‐Score–Matched Patients With Moderately Reduced Kidney Function Who Underwent AVR Between 1997 and 2013
| All Patients (n=960) | Bioprosthesis (n=480) | Mechanical Valve Prosthesis (n=480) | Standardized Difference, % | |
|---|---|---|---|---|
| Age, y, mean (SD) | 69.6 (7.6) | 69.3 (7.3) | 70.0 (7.8) | 8.4 |
| Female sex (%) | 503 (52.4) | 246 (51.2) | 257 (53.5) | 4.6 |
| Civil status (%) | ||||
| Not married | 350 (36.5) | 165 (34.4) | 185 (38.5) | 8.7 |
| Education (%) | ||||
| <10 years | 408 (42.5) | 207 (43.1) | 201 (41.9) | 2.5 |
| 10 to 12 years | 421 (43.9) | 211 (44.0) | 210 (43.8) | 0.4 |
| >12 years | 131 (13.6) | 62 (12.9) | 69 (14.4) | 4.2 |
| Region of birth (%) | ||||
| Non‐Nordic countries | 53 (5.5) | 26 (5.4) | 27 (5.6) | 0.9 |
| Body mass index, kg/cm2, mean (SD) | 26.9 (4.7) | 26.9 (4.9) | 26.9 (4.5) | 0.5 |
| Diabetes mellitus (%) | 147 (15.3) | 78 (16.2) | 69 (14.4) | 5.2 |
| Atrial fibrillation (%) | 266 (27.7) | 142 (29.6) | 124 (25.8) | 8.4 |
| Hypertension (%) | 238 (24.8) | 117 (24.4) | 121 (25.2) | 1.9 |
| Hyperlipidemia (%) | 67 (7.0) | 30 (6.2) | 37 (7.7) | 5.7 |
| Stroke (%) | 103 (10.7) | 56 (11.7) | 47 (9.8) | 6.1 |
| Peripheral vascular disease (%) | 83 (8.6) | 40 (8.3) | 43 (9.0) | 2.2 |
| Chronic pulmonary disease (%) | 96 (10.0) | 52 (10.8) | 44 (9.2) | 5.6 |
| Past myocardial infarction (%) | 74 (7.7) | 33 (6.9) | 41 (8.5) | 6.2 |
| Past PCI (%) | 29 (3.0) | 10 (2.1) | 19 (4.0) | 11.0 |
| Past major bleeding event (%) | 38 (4.0) | 17 (3.5) | 21 (4.4) | 4.3 |
| Alcohol dependency (%) | 16 (1.7) | 7 (1.5) | 9 (1.9) | 3.3 |
| Liver disease (%) | 3 (0.3) | 0 (0.0) | 3 (0.6) | 11.2 |
| Cancer (%) | 70 (7.3) | 38 (7.9) | 32 (6.7) | 4.8 |
| eGFR, mL/min per 1.73 m2 (%) | ||||
| 45 to 60 | 732 (76.2) | 372 (77.5) | 360 (75.0) | 5.9 |
| 30 to 45 | 228 (23.8) | 108 (22.5) | 120 (25.0) | 5.9 |
| Heart failure (%) | 271 (28.2) | 138 (28.7) | 133 (27.7) | 2.3 |
| Left ventricular ejection fraction (%) | ||||
| >50 | 325 (66.7) | 157 (65.4) | 168 (68.0) | 5.5 |
| 30 to 49 | 113 (23.2) | 56 (23.3) | 57 (23.1) | 0.6 |
| <30 | 49 (10.1) | 27 (11.2) | 22 (8.9) | 7.8 |
| Endocarditis (%) | 70 (7.3) | 32 (6.7) | 38 (7.9) | 4.8 |
| Emergent surgery (%) | 22 (2.3) | 11 (2.3) | 11 (2.3) | 0 |
| Isolated AVR (%) | 793 (82.6) | 384 (80.0) | 409 (85.2) | 13.8 |
| Year of surgery (%) | ||||
| 1997 to 2001 | 399 (41.6) | 207 (43.1) | 192 (40.0) | 6.3 |
| 2002 to 2006 | 364 (37.9) | 179 (37.3) | 185 (38.5) | 2.6 |
| 2007 to 2013 | 197 (20.5) | 94 (19.6) | 103 (21.5) | 4.6 |
Divided by prosthesis type. Data are n (%), unless otherwise noted. AVR indicates aortic valve replacement; eGFR, estimated glomerular filtration rate; PCI, percutaneous coronary intervention.