Table 4 Results of histopathological examination in both study groups
From: Impact of mucosal biofilm and bony osteitis on chronic rhinosinusitis with nasal polyps
| Â | Â | Group | Â | Â | |||
|---|---|---|---|---|---|---|---|
| Â | Â | CRSwNP (n = 45) | Control (n = 10) | Â | Â | ||
Variable |  | n | % | n | % | χ2(1) | P value* |
Bone grading | Grade 0 | 5 | 11.1 | 4 | 40.0 | 1.074 | 0.300 |
Grade I | 16 | 35.6 | 2 | 20.0 | |||
Grade II | 19 | 42.2 | 2 | 20.0 | |||
Grade III | 5 | 11.1 | 2 | 20.0 | |||
Mucosal grading | Grade 0 | 1 | 2.2 | 6 | 60.0 | 19.636 | < 0.001 |
Grade I | 8 | 17.8 | 2 | 20.0 | |||
Grade II | 28 | 62.2 | 2 | 20.0 | |||
Grade III | 8 | 17.8 | 0 | 0.0 | |||
Tissue eosinophils | Nil | 0 | 0.0 | 4 | 40.0 | 25.834 | < 0.001 |
Low | 3 | 6.7 | 4 | 40.0 | |||
Moderate | 6 | 13.3 | 0 | 0.0 | |||
High | 36 | 80.0 | 2 | 20.0 | |||
Biofilm | Negative | 8 | 17.8 | 6 | 60.0 | – | 0.012# |
Positive | 37 | 82.2 | 4 | 40.0 | |||