Table 8. Patient characteristics after propensity score matching.
| Variables | Matched Group P (n=32) | Matched Group N (n=32) | P value |
|---|---|---|---|
| Age (year) | |||
| Mean ± SD | 62.3±12.4 | 64.0±10.4 | 0.536 |
| Median (IQR) | 66.5 (54.8–70.0) | 66.0 (61.0–71.8) | 0.596 |
| Male, n (%) | 26 (81.3) | 26 (81.3) | 1.000 |
| BMI | |||
| Mean ± SD | 23.7±3.2 | 24.1±2.8 | 0.584 |
| Median (IQR) | 23.30 (20.87–26.52) | 24.06 (21.80–26.37) | 0.734 |
| BSA (m2) | |||
| Mean ± SD | 1.66±0.15 | 1.68±0.16 | 0.704 |
| Median (IQR) | 1.67 (1.59–1.77) | 1.67 (1.53–1.8) | 0.764 |
| Smoking history, n (%) | 18 (26.3) | 16 (50.0) | 0.616 |
| Hypertension, n (%) | 18 (56.3) | 17 (53.1) | 0.802 |
| Dyslipidemia, n (%) | 7 (21.9) | 11 (34.4) | 0.266 |
| Diabetes mellitus, n (%) | 6 (18.8) | 8 (25.0) | 0.545 |
| Primary diagnosis, n (%) | |||
| Valvular | 18 (56.3) | 18 (56.3) | 1.000 |
| Ischemic | 4 (12.5) | 4 (12.5) | 1.000 |
| Aortic | 8 (25.0) | 8 (25.0) | 1.000 |
| Others | 2 (6.3) | 2 (6.3) | 1.000 |
P values were derived by Student’s t-test or Mann-Whitney U test or chi-square test, as appropriate. BMI, body mass index; BSA, body surface area.