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. 2024 Sep 20;16(9):e69819. doi: 10.7759/cureus.69819

Table 3. Comparison of difference between pre-operative and post-operative values with improvement in grade of Eustachian tube function.

DNS: Deviated nasal septum, ETD: Eustachian tube dysfunction, Chi2: Chi-square, Pre-op: Pre-operative, Post-op: Post-operative.

Eustachian tube function: Grades zero and 1A were considered normal functions; 2A: mechanical dysfunction, edema, and congestion at the lumen; the lumen opens partly on swallowing; 3A: mechanical dysfunction; the tubal lumen fails to open with swallowing due to gross edema.

In this table, a chi-square test was used, and the association in types 5, 6, and 8 was of statistical significance with p-values < 0.001, < 0.001, and 0.0357, respectively.

Type of DNS Pre-op ETD (n=66) Post-op ETD (n=66) % Improvement Chi sq p-value
  0/1A 2A 3A 0/1A 2A 3A
Type 3 - 11 (16.6%) - 11(16.6%) - - 100% NA -
Type 4 - 08 (12.1%) - 08 (12.1%) - - 100% NA -
Type 5 - 01 (1.5%) 16 (24.2%) 11 (16.6%) 05 (7.5%) 01 (1.5%) 94.1% Chi2: 26.902 p < 0.001
Type 6 - - 21 (31.8%) 11 (16.6%) 10 (15.1%) - 100% Chi2: 42.0 p-value <0.001
Type 7 - - 04 (6.0%) - 02 (3.0%) 02 (3.0%) 50% Chi2: 2.66 p-value < 0.1025
Type 8 - - 05 (7.5%) 02 (3.0%) 02 (3.0%) 01 (1.5%) 80% Chi2: 6.6667 p-value < 0.0357