Table 2.
Findings on imaging
| Variables | HGH-ED, Qatar | Alfred ED, Australia | P value |
|---|---|---|---|
| Stone size (largest dimension), mm | 6 (4–8) | 4 (3–6) | P < 0.001 |
| Number of stones, n (%) | |||
| 1 | 1347(51.9) | 152 (60.8) | |
| 2 | 417 (16.1) | 44 (17.6) | |
| 3 | 95 (3.7) | 15 (6.0) | |
| Multiple | 735 (28.3) | 39 (15.6) | |
| Total | 2594 (100) | 250 (100) | |
| Location of stone, n (%) | |||
| Renal pelvis calyx | 466 (17.7) | 27 (11.1) | |
| Pelvi-ureteric junction | 42 (1.6) | 16 (6.6) | |
| Upper ureter | 434 (16.5) | 43 (17.6) | |
| Mid ureter | 211 (8.0) | 18 (7.4) | |
| Lower ureter | 704 (26.7) | 46 (18.9) | |
| Ureterovesical junction | 592 (22.4) | 87 (35.7) | |
| Bladder | 103 (3.9) | 7 (2.9) | |
| Urethra | 11 (0.4) | 0 (0) | |
| Recently passed | 75 (2.8) | 0 (0) | |
| Total | 2638 (100) | 244 (100) | |
| Hydronephrosis, n (%) | |||
| Present | 2268 (75.5) | 168 (60.4) | P < 0.001 |
| Total | 3003 (100) | 278 (100) | |
| Hydroureter, n (%) | |||
| Present | 1844 (61.4) | 133 (47.8) | P < 0.001 |
| Total | 3003 (100) | 278 (100) | |
| Fat stranding, n (%) | |||
| Present | 1048 (34.9) | 135 (48.6) | P < 0.001 |
| Total | 3003 (100) | 278 (100) | |