Table 1.

Clinical characteristics and outcomes for the two groups.

Patients	Group A	Group B	p-value
Total cases	142	155	–
Mean age, months	17.1 ± 7.3	18.4 ± 7.1	0.13
Surgery technique			0.87
Mathieu	5 (3.5%)	5 (3.2%)
Tubularized incised plate (TIP)	112 (78.9%)	126 (81.3%)
Duckett or Koyanagi	25 (17.6%)	24 (15.5%)
Catheter blockage	12 (8.5%)	4 (2.6%)	0.048*
Gross hematuria	11 (7.7%)	6 (3.9%)	0.15
Urethral fistula	13 (9.2%)	11 (7.1%)	0.52

^*Chi-squared test with Yates’ correction.