Table 2. Baseline characteristics of CMD and control patients.
| Variable | CMD patients (n=50) | Control patients (n=52) | t or χ2 | P |
|---|---|---|---|---|
| Female, n (%) | 22 (44.0) | 20 (38.5) | 0.091 | 0.763 |
| Age (years) | 61.22±7.91 | 62.93±8.03 | −0.770 | 0.445 |
| Hypertension, n (%) | 40 (80.0) | 40 (76.9) | 0.071 | 0.789 |
| Diabetes mellitus, n (%) | 10 (20.0) | 8 (15.4) | 1.116 | 0.572 |
| Smoking, n (%) | 24 (48.0) | 20 (38.5) | 1.018 | 0.313 |
| Double or triple vessel stenosis, n (%) | 28 (58.4) | 24 (46.1) | 2.318 | 0.314 |
| Residual coronary stenosis ≥50%, n (%) | 12 (24.0%) | 4 (7.7%) | 2.563 | 0.109 |
| BMI ≥24 kg/m2, n (%) | 40 (80.0) | 26 (50.0) | 5.023 | 0.025 |
| BMI (kg/m2) | 26.12±2.71 | 24.36±2.72 | 2.396 | 0.020 |
| TC (mmol/L) | 4.93±1.12 | 4.14±1.08 | 2.584 | 0.013 |
| LDL-C (mmol/L) | 3.04±0.88 | 2.42±1.00 | 3.478 | 0.001 |
| Cr (umol/L) | 62.25±16.8 | 65.5±14.7 | −0.748 | 0.458 |
| T wave inversion, n (%) | 22 (44.0) | 10 (19.2) | 3.632 | 0.047 |
| LAD (mm) | 36.53±3.52 | 36.32±3.13 | 0.270 | 0.788 |
| LVEDD (mm) | 45.74±3.36 | 45.18±4.52 | 0.546 | 0.588 |
| LVEF (%) | 64.51±5.63 | 62.55±3.81 | 1.478 | 0.146 |
Values was given as number of patients (%) or mean ± SD. CMD, coronary microvascular dysfunction; BMI, body mass index; TC, total cholesterol; LDL-C, low density lipoprotein cholesterol; Cr, creatinine; LAD, left atrial diameter; LVEDD, left ventricular end-diastolic diameter; LVEF, left ventricular ejection fraction.