Table 2
Age adjusted crude odds ratio
20–30 years
31–40 years
41–50 years
Smoker
Non-smoker
Smoker
Non-smoker
Smoker
Non-smoker
Age adjusted odds ratio 2.24 (95% CI 1.27 to 3.94), p<0.05 (Mantel-Hanszel estimate).
Cases
13
11
22
3
29
7
Controls
78
110
95
61
79
35