Table 1.
Patient characteristics.
| Characteristics | Pneumatic | Ho:YAG laser | |
|---|---|---|---|
| No. of patients | 117 | 113 | |
| Female/male | 37/80 | 36/77 | 0.97*** |
| Mean age, y, | 43.4 ± 14.5 | 42.2 ± 14.7 | 0.810* |
| Mean BMI, kg/m² | 28.8 ± 4.6 | 27.9 ± 4.7 | 0.735* |
| No., right/left/bilateral | 76/39/2 | 68/42/3 | |
| No. with history of stone disease | 60 (51.2%) | 66 (58.4%) | 0.278*** |
| Stone location, n | |||
| Proximal | 28 | 36 | |
| Distal | 73 | 62 | |
| Multiple | 16 | 15 | |
| Mean stone burden, mm | |||
| Proximal | 11.7 ± 4.2 | 12.3 ± 4.4 | 0.895** |
| Distal | 10.7 ± 2.9 | 10.5 ± 3.9 | 0.715* |
| Multiple | 20.3 ± 6.5 | 23.8 ± 8.5 | 0.149** |
| No. with preoperative nephrostomy tube | 25 (21.4) | 17 (15.4) | 0.279*** |
| Mean operation time, min | 28.4 ± 9.7 | 32.2 ± 11.1 | 0.035* |
| No. with postoperative double‐J stent | 49 | 38 | 0.197*** |
| No. with postoperative ureteral catheterization | 68 | 75 | |
| Mean hospitalization time, d (range) | 2.2 (1–8) | 1.9 (1–6) | 0.39* |
Data are presented as n (%) or mean ± SD, unless otherwise indicated.
BMI = body mass index; Ho:YAG = holmium:yttrium‐aluminum‐garnet; SD = standard deviation.
*t test.
**Mann–Whitney test.
***Chi‐square test.