Table 1.
Variables * | Total Study Group (n = 7489) |
PM Group (n = 900) |
No PM Group (n = 6589) |
---|---|---|---|
Male sex | 3681 (49.2%) | 494 (54.9%) | 3187 (48.4%) |
Age, mean (SD), y | 79.7 (±6.8) | 80.0 (±6.5) | 79.7 (±6.9) |
Weight, mean (SD), kg | 77.2 (±15.8) | 78.6 (±15.6) | 77.1 (±15.7) |
Creatinine serum level, median (IQR), μmol/L | 92.0 (75.0–115.0) | 95.0 (78.0–122.0) | 92.0 (75.0–115.0) |
Diabetes mellitus † | 2049 (27.6%) | 258 (28.9%) | 1791 (27.5%) |
Left ventricular ejection fraction, median (IQR), % | 55.0 (43.0–55.0) | 55.0 (54.0–55.0) | 55.0 (43.0–55.0) |
Systolic pulmonary pressure, median (IQR), mmHg † | 25.0 (25.0–33.0) | 25.0 (25.0–34.0) | 25.0 (25.0–33.0) |
History of lung disease † | 1624 (21.7%) | 195 (21.7%) | 1429 (21.7%) |
Peripheral vascular disease † | 1654 (22.1%) | 193 (21.5%) | 1461 (22.2%) |
Previous cardiac surgery | 1505 (20.7%) | 160 (18.5%) | 1345 (21%) |
Recent myocardial infarction | 141 (1.9%) | 14 (1.6%) | 127 (1.9%) |
Dialysis | 96 (1.3%) | 16 (1.8%) | 80 (1.2%) |
Euroscore II, median (IQR), % | 3.6 (2.2–6.1) | 3.7 (2.2–6.1) | 3.6 (2.2–6.1) |
Previous aortic valve surgery | 339 (4.6%) | 19 (2.1%) | 320 (4.9%) |
* Numbers are presented as valid percentages, excluding missing values. † See Addendum S2 for definitions of baseline characteristics Values are n (%). SD = standard deviation; IQR = interquartile range; PM = pacemaker.