Table 2.
Computed tomography features of eosinophilic chronic rhinosinusitis with nasal polyps and non-eosinophilic chronic rhinosinusitis with nasal polyps
| ECRSwNP (n = 27) | NECRSwNP (n = 33) | |
| Total disease score of sinuses | 14.42 ± 3.84b | 9.64 ± 3.37 |
| Number of involved sinuses | 7.88 ± 1.22b | 5.64 ± 1.49 |
| Percentage of involvement in all sinuses | 23.1%a | 3.0% |
| Incidence of bilateral diseases in individual sinuses | ||
| Frontal | 53.8%b | 12.1% |
| Sphenoid | 38.5%a | 9.1% |
| Anterior ethmoid | 53.8%a | 12.1% |
| Posterior ethmoid | 100.0%b | 75.8% |
| Maxillary | 96.2%a | 69.7% |
| OMC | 69.2%a | 36.4% |
| Score of diseases in individual sinuses | ||
| Frontal | 1.81 ± 1.51a | 0.88 ± 0.91 |
| Sphenoid | 1.23 ± 1.28a | 0.55 ± 0.76 |
| Anterior ethmoid | 3.27 ± 0.90b | 2.27 ± 0.87 |
| Posterior ethmoid | 3.04 ± 1.04b | 1.52 ± 0.95 |
| Maxillary | 2.23 ± 0.43 | 2.15 ± 0.69 |
| OMC | 2.85 ± 1.60 | 2.27 ± 1.20 |
a
P < 0.05,
b
P < 0.01 vs NECRSwNP. Scoring for sinus diseases on computed tomography (CT): 0 = normal, 1 = partial opacification, and 2 = total opacification; these points are applied to individual sinuses on each side; OMC is graded as 0 = not occluded, or 2 = occluded; deriving a maximum score of 12 per side. ECRSwNP: Eosinophilic chronic rhinosinusitis with nasal polyps; NECRSwNP: Non-eosinophilic chronic rhinosinusitis with nasal polyps; OMC: Ostiomeatal complex.