Table 1.

Demographics and stones characteristics

Variable	Group (1): BNTC n = 55	Group (2): NT n = 55	p-value
Age, mean (SD)	52 (14)	54(12)	0.5
Female, n (%)	25 (45%)	24 (44%)	0.8
Side (Right)	24 (44%)	29 (53%)	0.3
BMI, kg/m2, mean (SD)	34 (3.5)	34.4 (3.1)	0.07
HTN, n (%)	22 (40%)	21 (38%)	0.8
DM, n (%)	17 (31%)	15 (27%)	0.6
Stone size, largest diameter, cm, mean (SD)	3.7 (1.4)	3.8 (1.1)	0.5
Stone HFU, mean (SD)	946 (348)	991 (354)	0.5

BMI body mass index, HTN hypertension, DM diabetes mellitus, HFU Hounsfield unit