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Table 2 Comparison between the cholesteatoma and non-cholesteatoma according to Cog type (I, II and III)

From: Distribution of different morphological types of anterior epitympanic plate “cog” and Köerner’s septum in CT images of cholesteatomatous and non-cholesteatomatous CSOM: is it really significant?

  Total
(n = 86)
Final diagnosis χ2 p
Cholesteatoma
(n = 49)
Non-cholesteatoma
(n = 37)
Cog type
 I 40 (46.5%) 10 (20.4%) 30 (81.1%) 31.194* <0.001*
 II 28 (32.6%) 22 (44.9%) 6 (16.2%) 7.898* 0.005*
 III 18 (20.9%) 17 (34.7%) 1 (2.7%) 13.037* <0.001*
χ2 (p) 32.320* (<0.001*)   
  1. χ2 Chi square
  2. p: p value for comparing between Cholesteatoma and Non-cholesteatoma
  3. * Statistically significant at p ≤ 0.05