Table 2.
Clinical and preoperative factors between sepsis and nonsepsis groups.
| Variables | Sepsis | Nonsepsis | t/χ2 | P value |
|---|---|---|---|---|
| Age (years) | 49.5 ± 10.20 | 51.47 ± 10.52 | -0.993 | 0.322 |
| Gender | 1.855 | 0.173 | ||
| Male | 9 (60.0) | 175 (73.5) | ||
| Female | 6 (40.0) | 56 (26.5) | ||
| Diabetes mellitus | 5.438 | 0.028∗ | ||
| Yes | 7 (46.7) | 48 (20.8) | ||
| No | 8 (53.3) | 183 (79.2) | ||
| Stone location | 0.867 | 0.648 | ||
| Renal pelvis | 3 (20.0) | 72 (31.2) | ||
| Calyceal | 7 (46.7) | 97 (42.0) | ||
| Upper ureter | 5 (33.3) | 62 (26.8) | ||
| BMI(kg/m2) | 24.48 ± 2.74 | 24.03 ± 2.81 | 0.850 | 0.396 |
| Stone side | 0.953 | 0.621 | ||
| Right | 6 (40.0) | 121(52.4) | ||
| Left | 6 (40.0) | 78 (33.8) | ||
| Two sides | 3 (20.0) | 32 (13.8) | ||
| Stone number | 1.155 | 0.283 | ||
| Single | 10 (66.7) | 121 (52.4) | ||
| Multiple | 5 (33.3) | 110 (47.6) | ||
| Staghorn calculi | 85.899 | <0.001∗ | ||
| Yes | 11 (73.3) | 10 (4.3) | ||
| No | 4 (26.7) | 221 (95.7) | ||
| Largest stone size (mm) | 27.84 ± 14.77 | 23.63 ± 8.85 | 2.265 | 0.024∗ |
| Serum creatinine (umol/L) | 80.29 ± 24.72 | 80.33 ± 36.52 | -0.007 | 0.995 |
| Midstream urine culture | 82.968 | <0.001∗ | ||
| Positive | 10 (66.7) | 8(3.50) | ||
| Negative | 5 (33.3) | 223(96.5) | ||
| The urinary microscopy WBC | 11.005 | 0.027∗ | ||
| WBC (+) | 1 (6.6) | 31 (13.4) | 1.425 | 0.233 |
| WBC (++) | 3 (20.0) | 48 (20.8) | 2.732 | 0.098 |
| WBC (+++) | 4 (26.7) | 15 (6.50) | 10.105 | 0.001∗ |
| WBC (++++) | 7 (46.7) | 92 (39.8) | 3.344 | 0.067 |
| Preoperative renal fistula | 52.894 | <0.001∗ | ||
| Yes | 6 (40.0) | 4 (1.8) | ||
| No | 9 (60.0) | 227 (98.2) | ||
| Surgery time (min) | 88.50 ± 30.28 | 87.85 ± 33.40 | 0.104 | 0.977 |
∗Statistically significant, BMI: body mass index. The urinary microscopy WBC: at high magnification, urine sediment white blood cell count. WBC (+): urinary sediment microscopy counts of 5—10/HP. WBC (++): urinary sediment microscopic counting 10—15/HP. WBC (+++): urinary sediment microscopic counting 15—20/HP. WBC (++++): urinary sediment microscopic counting >20/HP.