From: Effect of head and neck radiotherapy on the Eustachian tube functions
Variable | Glottic group (20) | Sub-glottic group (3) | Supra-glottic group (7) | Chi-square test | |
---|---|---|---|---|---|
p value | |||||
Tympanogram before treatment in both ears | Normal | 20 (100%) | 3 (100%) | 7 (100%) | |
Tympanogram (end of ttt) (contralateral) | A—Normal | 15 (75%) | 3 (100%) | 4 (57.1%) | = 0.3761 |
B—Effusion | 2 (10%) | 0 (0%) | 0 (0%) | ||
C—ET dysfunction | 3 (15%) | 0 (0%) | 3 (42.9%) | ||
Tympanogram (end of ttt) (ipsilateral) | A—Normal | 10 (50%) | 1 (33.3%) | 3 (42.9%) | = 0.037* |
B—Effusion | 2 (10%) | 0 (0%) | 4 (57.1%) | ||
C—ET dysfunction | 8 (40%) | 2 (66.7%) | 0 (0%) | ||
Tympanogram (12 weeks) (contralateral) | A—Normal | 16 (80%) | 3 (100%) | 6 (85.7%) | = 0.8160 |
B—Effusion | 2 (10%) | 0 (0%) | 0 (0%) | ||
C—ET dysfunction | 2 (10%) | 0 (0%) | 1 (14.3%) | ||
Tympanogram (12 weeks) (ipsilateral) | A—Normal | 15 (75%) | 2 (66.7%) | 5 (71.4%) | = 0.0744 |
B—Effusion | 0 (0%) | 0 (0%) | 2 (28.6%) | ||
C—ET dysfunction | 5 (25%) | 1 (33.3%) | 0 (0%) |