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| Characteristics | Grade of Hydronephrosis n (%) | |
|---|---|---|
| Size of calculus | Mild | Moderate |
| ≤5 | 47 (92.20) | 4 (7.80) |
| >5 | 32 (54.20) | 27 (45.80) |
| Calculus in proximal ureter | 13 (61.90) | 8 (38.10) |
| Calculus in mid ureter | 18 (72.00) | 7 (28.00) |
| Calculus in distal ureter | 17 (63) | 10 (37) |
| Calculus in ureteropelvic junction | 35 (87.50) | 5 (12.50) |
