Group | N | Stone size | Stone removal time (min) |
|---|
A (<2 cm) | 22 | 1.35 ± 0.37 | 5.50 ± 3.92 |
B (2-2.9 cm) | 21 | 2.38 ± 0.32 | 11.90 ± 9.91 |
C (3-3.9 cm) | 12 | 3.30 ± 0.29 | 21.92 ± 9.44 |
D (≥4 cm) | 7 | 4.69 ± 0.86 | 49.29 ± 30.47 |
- Compared with Group A, the difference of stone removal time was statistically significant, P <0.01 in Group B, P <0.001 in Group C and Group D. Compared with Group B, the difference was statistically significant, P <0.01 in Group C and P <0.001 in Group D. Compared with Group C, the difference was statistically significant, P <0.02 in Group D.
