Table 1.

Patients demographics.

	PL (n = 53)	RL (n = 24)	P-value
Age (month) (SD)	5.2 (2.6)	7.1 (3.87)	0.06 (U)
Sex, n (%)			0.90 (X2)
Boys	41 (77.3)	19 (79)
Girls	12 (22.7)	5 (21)
Weight (kg) (SD)	7.67 (1.3)	7.97 (1.7)	0.14 (t)
Laterality of UPJO, n (%)			0.30 (X2)
Right	22 (41.5)	11 (45.8)
Left	31 (39.5)	13 (54.2)
Pelvis diameter (mm) (SD)	28.9 (9.7)	26.9 (11.7)	0.43 (t)

SD, Standard Deviation; n, number of patient.