Table 5.
The SWL outcomes (case %) according to stent caliber and comparisons among these groups
| SWL outcome | Case % | p values | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 8 Fr | 7 Fr | 6 Fr | All | 8 versus 7 Fr | 8 versus 6 Fr | 8 versus 6 and 7 Fr | 6 versus 7 Fr. | 6 versus 7 and 8 Fr | |
| SF after 1st SWL | 2.9 | 8.7 | 9.5 | 8.0 | 0.726 | 0.384 | 0.383 | 0.786 | 0.515 |
| SF after 2nd SWL | 0 | 13.1 | 23.8 | 17.3 | 0.032 | 0.004 | 0.006 | 0.394 | 0.006 |
| SF after 3rd SWL | 2.9 | 4.3 | 23.8 | 16.7 | 0.652 | 0.014 | 0.031 | 0.036 | 0.002 |
| Overall stone free | 5.9 | 26.1 | 57.1 | 42.0 | 0.033 | 0.001 | 0.001 | 0.014 | 0.001 |
| Residual fragments | 23.5 | 47.8 | 29.6 | 30.9 | 0.105 | 0.648 | 0.102 | 0.148 | 0.747 |
| Stone not fragmented | 70.6 | 26.1 | 13.3 | 27.1 | 0.002 | 0.001 | 0.001 | 0.227 | 0.001 |
Values in italics for p < 0.05
SF stone-free