Table 1.

Demographics of patients and calculi

Gender
Male	68
Female	40
Age, years	38 ± 21
Calculus size, cm	1.37 ± 0.43 (0.9–2.0)
Position of calculus
Middle-upper calyceal and pelvis	73
Lower calyceal	35
Hydronephrosis
≥3 cm	4
1–3cm	25
No	79
Previous ESWL (%)	17.6

ESWL: extracorporeal shock wave lithotripsy.