Table 2.
Comparison of preoperative factors in enrolled patients
| Variables | Group 1 (N = 134) |
Group 2 (N = 44) |
P value |
|---|---|---|---|
| Age (year, median, IQR)) | 61 (52–67) | 61 (53–67) | 0.889 |
| Sex (number, %) | |||
| Male | 92 (68.7) | 15 (34.1) | < 0.001 |
| Female | 42 (31.3) | 29 (65.9) | |
| Body mass index (kg/m2, median, IQR) |
22.2 (20.0–24.5) |
23.3 (22.0–26.3) |
0.006 |
| Smoking history (number, %) | 18 (13.4) | 15 (34.1) | 0.005 |
| Diabetes mellitus (number, %) | 8 (5.9) | 2 (4.5) | > 0.999 |
| Hypertension (number, %) | 25 (18.6) | 13 (29.5) | 0.223 |
| Preoperative serum Cr (mg/dL, median, IQR) |
0.64 (0.58–0.73) |
0.73 (0.61–0.83) |
0.011 |
| Two or more renal arteries (number, %) | 17 (12.7) | 13 (29.5) | 0.020 |
| Right nephrectomy (number, %) | 14 (10.4) | 5 (11.4) | > 0.999 |
Q Quartile, IQR Interquartile range, CR Creatinine
t-test、Pearson ‘s Chi-squared test