Table 1. Demographic characteristics, preoperative findings, and operative information of patients

	CWUTM (n=25)	CWUTM & MO (n=44)	p-value
Age (year, mean ±SD)	52.6 ± 10.9	52.7 ± 11.0	0.439
Sex			0.34
Male	9 (36%)	17 (39%)
Female	16 (64%)	27 (61%)
Side			0.257
Right	12 (48%)	22 (50%)
Left	13 (52%)	22 (50%)
Perforation size			0.432
Small (<25%)	4 (16%)	11 (25%)
Moderate (25–50%)	6 (24%)	17 (39%)
Large (>50%)	15 (60%)	16 (36%)
Mastoid			0.518
Diploic	12 (48%)	18 (41%)
Sclerotic	13 (52%)	26 (59%)
Additional procedure			0.568
Tympanoplasty 1	25 (100%)	31 (70%)
Ossiculoplasty	0 (0%)	13 (30%)
Follow-up period (month, mean±SD)	26 ± 12	26 ± 12	0.695

CWUTM : Canal Wall Up Tympanomastoidectomy, MO : Mastoid Obliteration, SD : Standard deviation