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The Egyptian Journal of Otolaryngology

Table 5 Association between the number of attempts of cauterization and closure of tympanic membrane perforation by Fischer’s exact test, N = 90

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

Number of attempts

Closure of perforation

P value

Achieved

Not achieved

One

15

1

0.0001

Two

12

2

Three

14

1

Four

15

4

Five

3

2

Six

8

13

  1. Lost to follow-up patients were considered to have treatment failure
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