From: Association of various factors related to mastoid buffer and middle ear ventilation in etiopathogenesis of squamous chronic otitis media—a cross-sectional study
Other associated factors
Number of patients
ETD
Deviated nasal septum
36 (97.29%)
23 (63.88%)
Concha bullosa
11 (29.7%)
6 (85.71%)
Adenoids
4 (10.81%)
4 (100%)
Cleft palate
3 (2.70%)
3 (100%)