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Table 2 Statistically significant differences in percent area of TGF-β 1 expression in the epithelium, controls versus CRSwNP patients

From: Epithelium and stroma from nasal polyp mucosa exhibits inverse expression of TGF-β1 as compared with healthy nasal mucosa

Epithelium
   Positive area (%)  
  CRSwNP   Control
Mean 32.44   55.91
95% CI 32.06–38.80   42.63–69.18
Standard deviation 11.93   19.76
Minimum 13.56   24.39
Maximun 47.50   86.02
  1. 95%: CI, 95% confidence interval.
  2. Student’s t test, p= 0.007.
  3. Kolmogrow-Sminov test, polyposis group, p = 0.85; control group, p = 0.99.