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Table 3

Summary of lung cancer risk estimates by smoking status and treatment group

Smoking statusaNumber of cases selenium/placebobHRc (95% CI)
Current 16/25 0.67 (0.36, 1.26) 
Former 7/10 0.70 (0.26, 1.81) 
Smoking statusaNumber of cases selenium/placebobHRc (95% CI)
Current 16/25 0.67 (0.36, 1.26) 
Former 7/10 0.70 (0.26, 1.81) 
a

Smoking status defined at baseline. Never-smokers represented only 2 cases of lung cancer.

b

Two lung cancer cases in never-smokers from the selenium group were excluded from this analysis.

c

Adjusted for age and baseline plasma selenium as continuous variables.

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