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Table 4 Association between cauterization with TCA with gel foam and TCA alone and closure of tympanic membrane perforation by chi-square test, N = 86

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

Characteristics

Closure of perforation

Chi-square value

P value

Achieved

Not achieved

Agent used for cauterization

 TCA with gel foam

39

6

4.208

0.04

 TCA

28

13

  1. TCA Trichloroacetic acid