Table 1 The comparison of clinical characteristics among the three groups
Group | tf-URS group (n = 51) | SMP group (n = 46) | FURS group (n = 55) | F(x2) value | P value | |
|---|---|---|---|---|---|---|
Age | 41.4 ± 14.6 | 41.4 ± 15.6 | 42.4 ± 13.2 | F = 0.088 | 0.916 | |
Body mass index (BMI) | 24.25 ± 3.81 | 24.13 ± 4.07 | 24.66 ± 3.71 | F = 0.276 | 0.759 | |
Gender | x2 = 1.419 | 0.492 | ||||
Male | 25(49%) | 28(61%) | 29(53%) | |||
Female | 26(51%) | 18(39%) | 26(47%) | |||
Stone location | x2 = 9.246 | 0.509 | ||||
Renal calculi | Upper calyx | 4(7.8%) | 2(4.3%) | 7(12.7%) | ||
Middle calyx | 10(19.6%) | 6(13.0%) | 5(9.1%) | |||
Lower calyx | 2(3.9%) | 6(13.0%) | 2(3.6%) | |||
Renal pelvis | 4(7.8%) | 3(6.5%) | 3(5.5%) | |||
Upper ureteral calculi | 24(47.1%) | 24(52.2%) | 30(54.5%) | |||
Multiple locations* | 7(13.7%) | 5(10.9%) | 8(14.5%) | |||
Mean CT value (HU) | 956 ± 231 | 1031 ± 270 | 991 ± 242 | F = 1.144 | 0.321 | |
Calculi diameter (cm) | 1.3 ± 0.3 | 1.4 ± 0.3 | 1.4 ± 0.3 | F = 0.667 | 0.515 | |
Hydronephrosis#(cm) | 1.7 ± 0.8 | 1.8 ± 1.1 | 1.9 ± 1.1 | F = 0.440 | 0.645 | |
The course of disease† (d) | 26.7 ± 15.3 | 26.9 ± 15.3 | 26.9 ± 13.8 | F = 0.004 | 0.996 |