Table 1 Baseline data of the patients.

Number of patients

68

64

–

Age (years), (mean ± SD)

44.53 ± 13.76

49.20 ± 13.79

0.054

Gender (male/female)

38/30

35/29

0.890

BMI (kg/m²), (mean ± SD)

23.87 ± 2.739

24.50 ± 2.367

0.157

Stone laterality (L/R)

32/36

33/31

0.605

Stone siz (mm), (mean ± SD)

32.49 ± 8.710

33.22 ± 12.22

0.691

Stone-Hounsfield density, ( mean ± SD)

1017 ± 85.12

1027 ± 80.62

0.458