Table 1.
Preoperative baseline data of patients grouped by GPR ratio (n = 272).
| Variables | Total (n = 272) | GPR | P | |
|---|---|---|---|---|
| Low ≤ 1.74 (n = 137) | High > 1.74 (n = 135) | |||
| Age (years), mean (SD) | 53.60 ± 12.57 | 54.00 ± 12.40 | 55.68 ± 14.07 | 0.371 |
| Male, n (%) | 201 (73.9) | 102 (74.5) | 99 (73.3) | 0.834 |
| BMI (kg/m2), mean (SD) | 24.67 ± 2.30 | 24.54 ± 2.25 | 24.78 ± 2.35 | 0.389 |
| Hypertension, n (%) | 188 (69.1) | 93 (67.9) | 95 (70.4) | 0.573 |
| Coronary artery disease, n (%) | 9 (3.3) | 4 (2.9) | 5 (3.7) | 0.718 |
| Smoker, n (%) | 113 (41.5) | 63 (46.0) | 50 (37.0) | 0.134 |
| Drinker, n (%) | 63 (23.2) | 31 (22.6) | 32 (23.7) | 0.833 |
| Heart rate, mean (SD) | 80.22 ± 15.05 | 80.92 ± 13.86 | 79.50 ± 16.19 | 0.439 |
| Systolic BP (mm/Hg), mean (SD) | 141.14 ± 31.96 | 135.34 ± 29.79 | 147.04 ± 33.11 | 0.002* |
| Diastolic BP (mm/Hg), mean (SD) | 76.56 ± 17.03 | 73.58 ± 16.44 | 79.58 ± 17.14 | 0.003* |
| PP (mm/Hg), mean (SD) | 65.02 ± 23.74 | 61.82 ± 21.85 | 68.26 ± 25.18 | 0.025* |
| Operating time (min), median (IQR) | 312.00 (280.00–343.75) | 312.84 (282.00–350.50) | 312.84 (275.00–339.00) | 0.374 |
| Postoperative LVEF (%), median (IQR) | 61.83 (60.00–65.60) | 61.98 (59.45–65.35) | 62.20 (60.20–66.00) | 0.200 |
BMI body mass index, BP blood pressure, PP pulse pressure, LEVF left ventricular ejection fraction, SD standard deviation, IQR interquartile range.
*Significant difference at P value < 0.05.