Table 5.
Univariate analysis of risk factors for high-grade vascular injury (continuous variables).
| Grade III | Grade IV | Grade V | P value | |
|---|---|---|---|---|
| BMI | 15 (23.3479 ± 2.75715) | 44 (23.4528 ± 3.32105) | 5 (23.9844 ± 1.51947) | 0.923 |
| Operative time | 15 (107.3333 ± 40.26105) | 44 (137.0455 ± 41.51657) | 5 (148.0000 ± 49.6991) | 0.045 |
| Age | 15 (59.8667 ± 13.33560) | 44 (50.2045 ± 11.90775) | 5 (35.4000 ± 8.08084) | 0.001 |
| Stone size | 15 (2.1800 ± 0.77478) | 44 (2.6909 ± 1.20499) | 5 (2.6000 ± 0.65192) | 0.299 |
| Glomerular filtration rate (GFR) | 15 (26.9350 ± 24.42227) | 44 (20.5133 ± 19.56481) | 5 (28.9750 ± 22.26962) | 0.601 |
| Red blood cell count drop | 15 (1.0722 ± 0.36745) | 44 (1.2355 ± 0.48363) | 5 (1.4660 ± 0.20936) | 0.297 |
| Decreased hemoglobin | 15 (42.6000 ± 10.23858) | 44 (27.5909 ± 10.53304) | 5 (16.0000 ± 7.38241) | 0.002 |
| Decreased HCT | 15 (12.4000 ± 6.21369) | 44 (11.1916 ± 4.50993) | 5 (11.5200 ± 6.28228) | 0.808 |
Data are presented as the mean (standard deviation); BMI = body mass index; HCT = hematocrit.