- Comparisons of ethmoid infundibulum and natural ostium dimensions according to gender and age.
| Variables | EI width (mm) | EI length (mm) | MSNO diameter (mm) | |||
|---|---|---|---|---|---|---|
| Right side | Left side | Right side | Left side | Right side | Left side | |
| Men (45%) | 2.34±0.42 | 2.33±0.46 | 8.17±1.55 | 8.40±1.20 | 3.2±0.72 | 3.17±0.68 |
| Women (55%) | 2.39±0.71 | 2.26±0.59 | 7.62±1.47 | 8.29±1.72 | 3.03±0.79 | 3.1±0.8 |
| ≥60 years (41%) | 2.53±0.8* | 2.35±0.69 | 8.07±1.58 | 8.49±1.64 | 3.23±0.85 | 3.25±0.9 |
| <60 years (59%) | 2.25±0.37 | 2.25±0.39 | 7.73±1.47 | 8.24±1.41 | 3.02±0.68 | 3.05±0.61 |
Values are presented as mean ± standard deviation. EI: ethmoid infundibulum, MSNO: maxillary sinus natural ostium