Variables | SF (n = 75) | Non-SF (n = 21) | p |
---|---|---|---|
Age (years) | 56.1 ± 9.1 | 52.8 ± 14.8 | 0.51 |
BMI (kg/m2) | 24.2 ± 3.4 | 24.6 ± 1.7 | 0.69 |
Sex | |||
Male | 41 | 10 | 0.57 |
Female | 34 | 11 | |
Side | |||
Right | 43 | 11 | 0.69 |
Left | 32 | 10 | |
Renal stone size (mm) | 31.8 ± 11.1 | 35.1 ± 9.3 | 0.39 |
Renal stone surface area (mm2) | 677.1 ± 261.8 | 838.7 ± 247.6 | 0.09 |
CT (HU) | 1064.4 ± 302.6 | 1025.2 ± 309.9 | 0.72 |
Stone analysis | |||
Calcium oxalate | 54 | 15 | 0.96 |
Non calcium oxalate | 21 | 6 | |
Number of calyces involved by stone | |||
< 3 | 38 | 4 | 0.01 |
≥ 3 | 37 | 17 |