| Variable | BMI (Kg/m2) | P value | |||
| Normal (19 - 24.9) | Overweight (25 - 29.9) | Obese (30 - 34.9) | |||
| Age | 18 - 25 Years | 7 | 4 | 1 | 0.08 |
| 26 - 40 Years | 15 | 13 | 9 | ||
| 41 - 59 Years | 17 | 11 | 22 | ||
| ≥60 Years | 3 | 6 | 9 | ||
| Gender | Male | 25 | 20 | 27 | 0.78 |
| Female | 17 | 14 | 14 | ||
| Hydronephrosis | Yes | 17 | 12 | 11 | 0.42 |
| No | 25 | 22 | 30 | ||
| Anesthesia | GA | 21 | 25 | 28 | 0.08 |
| Spinal | 21 | 9 | 13 | ||
| Blood Transfusion | Yes | 4 | 5 | 2 | 0.35 |
| No | 38 | 29 | 39 | ||
| Fever | Yes | 7 | 9 | 3 | 0.08 |
| No | 35 | 25 | 38 | ||
| Number of tracts | 1 | 40 | 27 | 37 | 0.11 |
| 2 | 2 | 7 | 3 | ||
| 3 | 0 | 0 | 1 | ||