Table 3 Relation between duration of the nasal polyposis and the tympanometric results
From: Relationship between nasal polyposis and Eustachian tube function
| Â | Normal (type A) | ETD (type C) | OME (type B) | P value |
|---|---|---|---|---|
Mean NP duration | 6.05 ± 2.8 months | 72.6 ± 33.76 months | 7.8 ± 1.79 years | < 0.0001 F=169.912 |
Range | 5 moths–10 years | 1.5–6 years | 5–10 years |