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Table 3 Endoscopic grading in both study groups

From: Impact of mucosal biofilm and bony osteitis on chronic rhinosinusitis with nasal polyps

  

Group

  

CRSwNP (n = 45)

Control (n = 10)

Endoscopic grading

 

n

%

n

%

χ2(1)

P value*

 Right side

Grade 0

0

0.0

10

100.0

36.258

< 0.001

Grade I

5

11.1

0

0.0

Grade II

14

31.1

0

0.0

Grade III

24

53.3

0

0.0

Grade IV

2

4.4

0

0.0

 Left side

Grade 0

1

2.2

10

100.0

32.083

< 0.001

Grade I

5

11.1

0

0.0

Grade II

13

28.9

0

0.0

Grade III

22

48.9

0

0.0

Grade IV

4

8.9

0

0.0

  1. Data are number (n) and percentage (%)
  2. χ2 chi-squared statistic
  3. *Chi-squared test for trend