Table 3
Analysis of dichotomous variables
Dichotomous variable
Status
Cases
Controls
Significance
Diabetes mellitus
Yes
4
4
χ
2
= 0.45, p = 0.5
No
10
24
Nebulised antibiotics
Yes
10
19
χ
2
= 0.02, p = 0.89
No
4
9
Steroid use
Yes
8
7
χ
2
= 3.13, p = 0.08
No
5
19