Table 1

Variant		Group I	Group II	P value
Age (years)		9.96±4.9	8.71±4.7	0.317^a
Gender (male/female)		12/11	14/10	0.896^b
Levator excursion (mm)		1.4±1.0	1.6±0.9	0.419^a
Preoperative MRD I (mm)		0.72±0.6	0.85±0.7	0.443^a
Operative time (min.)		61±6.97	31±3.77	0.001^a
Postoperative MRD I (mm)	at 1 month	3.33±1.0	3.43±0.9	0.685^a
	at 12 months	2.60±1.2	2.77±1.1	0.656^a
	At 24 months	2.57±0.9	2.58±0.9	0.540^a
^aIndependent samples test, ^bPearson chi square test

Table 1: Descriptive and clinical preoperative, operative and postoperative data of both groups.