Table 3.

The comparison of complications among the three groups

Group	tf-URS group (n = 51)	SMP group (n = 46)	FURS group (n = 55)	x2 value	P value	Between-group difference
Fever	8(15.7%)	1(2.2%)	3(5.5%)	5.979	0.043	P = 0.022#	P = 0.084†	P = 0.400§
Mucosal injury	3(5.9%)	1(2.2%)	5(9.1%)	2.030	0.389
Perirenal hematoma	3(5.9%)	7(15.2%)	2(3.6%)	4.445	0.096

^#The difference between tf-URS group and SMP group

^†The difference between tf-URS group and FURS group

^§The difference between SMP group and FURS group