Table 2 Comparison of clinical characteristics according to SIRS at 32 initial treatments.
SIRS | non-SIRS | p value | |
|---|---|---|---|
n = 10 | n = 22 | ||
Gender (Male: Female) | 4 (40%):6 (60%) | 11 (50%):11 (50%) | 0.712 |
Age over 75 (Yes: No) | 4 (40%):6 (60%) | 13 (59%):9 (41%) | 0.450 |
Body mass index (kg/m2) | 18 (17–32) | 19 (13–28) | 0.573 |
Antecedent obstructive pyelonephritis (Yes: No) | 7 (70%):3 (30%) | 20 (91%):2 (9%) | 0.293 |
Target to renal stone (Yes: No) | 10 (100%):0 (0%) | 15 (68%):7 (32%) | 0.069 |
URS alone (Yes: No) | 6 (60%):4 (40%) | 20 (91%):2 (9%) | 0.060 |
Index stone diameter, mm | 24 (5–78) | 14 (5–24) | 0.065 |
Cumulative stone diameter, mm | 31 (6–122) | 22 (5–62) | 0.066 |
Highest CT-attenuation value, Hounsfield unit | 1144 (374–1372) | 813 (155–1708) | 0.484 |
Struvite calculi (Yes: No) | 5 (50%):5 (50%) | 7 (39%):11 (61%) | 0.698 |
Preoperative bladder urine culture (Positive: Negative) | 9 (90%):1 (10%) | 19 (86%):3 (14%) | 1.000 |
Renal pelvic urine culture (Positive: Negative) | 6 (60%):4 (40%) | 9 (41%):13 (59%) | 0.450 |
Stone culture (Positive: Negative) | 5 (50%):5 (50%) | 5 (28%):13 (72%) | 0.412 |
Operation time, min | 114 (36–181) | 81 (25–220) | 0.156 |
Preoperative stent (Yes: No) | 7 (70%):3 (30%) | 10 (45%):12 (55%) | 0.265 |
Preoperative nephrostomy (Yes: No) | 3 (30%):7 (70%) | 7 (32%):15 (68%) | 1.000 |
Duration of drainage tube placement, days | |||
Initial placement - surgery | 54 (17–473) | 27 (8–728) | 0.945 |
The latest replacement - surgery | 35 (17–112) | 26 (4–68) | 0.135 |
