Table 3.
Treatment characteristics according to groups
| Treatment characteristics | Group 1 | P | Group 2 | P | Group 3 | P | |||
|---|---|---|---|---|---|---|---|---|---|
| Stent | No stent | Stent | No stent | Stent | No stent | ||||
| No. of shock waves: Median (range) |
2000 (1000-3500) |
1800 (500-3500) |
0.078 |
2000 (1000-3500) |
1952 (500-3500) |
0.219 |
2000 (1000-3500) |
2000 (500-3500) |
0.138 |
| Generator energy(kV): Median (range) |
17.2 (16-18.4) |
17.2 (14.2-18.4) |
0.631 |
17.2 (15.4-17.8) |
17.2 (14.5-18.4) |
0.627 |
17.2 (14.5-18.2) |
17.2 (14.5-18.4) |
0.988 |
| No. of session(s): 1 session 2 sessions 3 sessions >4 sessions |
14/30 (47%) 3/30 (10%) 11/30 (37%) 2/30 (6%) |
325/484 (67%) 100/484 (21%) 39/484 (8%) 20/484 (4%) |
0.022 |
8/44 (18%) 12/44 (27%) 10/44 (23%) 14/44 (32%) |
233/486 (48%) 152/486 (31%) 54/486 (11%) 47/486 (10%) |
0.000 |
12/104 (12%) 24/104 (23%) 24/104 (23%) 44/104 (42%) |
65/213 (31%) 57/213 (27%) 33/213 (15%) 58/213 (27%) |
0.000 |
| No. of additional SWL sessions in different location | 2/30 (6.7%) |
32/484 (6.6%) |
1 | 6/44 (13.6%) |
90/486 (18.5%) |
0.421 | 29/104 (27.9%) |
77/213 (36.2%) |
0.143 |
| Steinstrasse | 2/30 (6.7%) |
28/484 (5.8%) |
0.692 | 5/44 (11.4%) |
77/486 (15.8%) |
0.431 | 27/104 (26%) |
48/213 (22.5%) |
0.500 |
| Result: stone free unsuccessful |
22/30 (73%) 8/30 (27%) |
418/484 (86%) 66/484 (14%) |
0.060 |
25/44 (57%) 19/44 (43%) |
390/486 (80%) 96/486 (20%) |
0.000 |
67/104 (64%) 37/104 (36%) |
160/213 (75%) 53/213 (25%) |
0.047 |