Table 1. Subject demographics [, n (%)].
| Subject demographics | Group A (n=22) | Group C (n=31) | t (χ2) | P |
|---|---|---|---|---|
| Age (years) | 47.4±9.3 | 43.7±11.2 | 1.313 | 0.195 |
| Gender: male, n (%) | 18 (81.8) | 25 (80.6) | 0.139 | 0.709 |
| Height (cm) | 1.70±0.69 | 1.73±0.86 | −1.252 | 0.216 |
| Weight (kg) | 73.2±11.6 | 76.8±15.8 | −0.971 | 0.336 |
| BMI (kg/m2) | 25.1±3.2 | 25.6±4.4 | −0.418 | 0.675 |
| Onset time (days) | 3.6±1.2 | 3.8±1.4 | −0.470 | 0.641 |
| Onset time ≤2 days, n (%) | 3 (13.6) | 3 (9.7) | 0.201 | 0.654 |
| Aortic diameter (mm) | 52.0±7.4 | 50.1±4.7 | 1.076 | 0.287 |
| Aortic intramural hematoma, n (%) | 2 (9.1) | 6 (19.4) | 3.358 | 0.067 |
| Partially thrombosed false lumen, n (%) | 7 (31.8) | 8 (25.8) | 0.547 | 0.459 |
| Significant aortic regurgitation, n (%) | 3 (13.6) | 5 (16.1) | 1.127 | 0.444 |
| Preoperative SBP (mmHg) | 121±21 | 122±23 | −0.240 | 0.811 |
| Preoperative DBP (mmHg) | 57±11 | 53±9 | 1.724 | 0.091 |
| Preoperative HR (beats/min) | 76±12 | 69±14 | 1.930 | 0.059 |
| Preoperative LVEF (%) | 58±7 | 57±4 | 0.819 | 0.416 |
| Preoperative LVEDD (mm) | 52±5 | 50±6 | 0.946 | 0.349 |
| Preoperative NT-proBNP (pg/mL) | 47.41±19.92 | 36.08±14.79 | 1.549 | 0.128 |
| Preoperative WBC (109/L) | 10.19±5.95 | 9.27±3.84 | 0.687 | 0.495 |
| Preoperative CRP (mg/L) | 37.26±9.22 | 32.42±8.93 | 1.920 | 0.060 |
| Preoperative SCr (ìmol/L) | 87.83±38.08 | 94.92±25.27 | −0.815 | 0.419 |
| Preoperative D-dimer (ìg/L) | 2,922±1,559 | 2,216±1,235 | 1.838 | 0.072 |
| History of hypertension, n (%) | 13 (59.1) | 17 (54.8) | 3.616 | 0.057 |
| History of DM, n (%) | 6 (27.3) | 6 (19.4) | 0.139 | 0.709 |
BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; HR, heart rate; LVEF, left ventricular ejection fraction; LVEDD, left ventricular end diastolic diameter; NT-proBNP, N terminal pro B type natriuretic peptide; WBC, white blood cells; CRP, C-reaction protein; SCr, serum creatinine; DM, diabetes mellitus.