Effectiveness of trichloroacetic acid and trichloroacetic acid with gel foam for closure in patients with central perforation of tympanic membrane—a randomized controlled trial

The Egyptian Journal of Otolaryngology

Table 3 Association between characteristics of the study population and closure of tympanic membrane perforation following cauterization, N = 86

Characteristics	Closure of perforation		Chi-square value	P value
Characteristics	Achieved	Not achieved	Chi-square value	P value
Age
< 40 years	37	11	0.43	0.836
≥ 40 years	30	8	0.43	0.836
Gender
Male	36	9	0.240	0.624
Female	31	10	0.240	0.624
Cause of perforation
CSOM	53	15	0.001	0.988
Trauma	14	4	0.001	0.988
Laterality
Unilateral	53	13	0.947	0.331
Bilateral	14	6	0.947	0.331
Size of perforation
Small-sized	47	7	7.028	0.008
Medium-sized	20	12	7.028	0.008