Table 1. Comparison of demographic parameters and stone characteristics in the study population.
| Parameter | Group 1 (n=27) | Group 2 (n=31) | Group 3 (n=30) | p-value |
|---|---|---|---|---|
| Age (y) | 32.8±8.4 | 40.4±12.7 | 39.8±9.5 | 0.01 |
| Sex; male:female | 11:16 | 15:16 | 21:9 | 0.06 |
| Body mass index (kg/m2) | 23.8±2.7 | 23.7±1.7 | 23.2±2.3 | 0.60 |
| Stone size (mm) | 13.8±3.0 | 14.3±3.1 | 14.6±3.2 | 0.60 |
| Stone location | 0.80 | |||
| Lower pole | 8 | 7 | 7 | |
| Nonlower pole | 19 | 24 | 23 | |
| Stone density (HU) | 952±317 | 861±250 | 911±243 | 0.40 |
| Symptom | 0.70 | |||
| Yes | 15 | 14 | 16 | |
| No | 12 | 17 | 14 |
Values are presented as mean±standard deviation or number.
Group 1, received extracorporeal shock wave lithotripsy (ESWL) only; group 2, DJ Stenting was done one week prior to the ESWL; group 3, stent was kept for 1 week and then removed, followed by ESWL; HU, Hounsfield units.