Fig. 5

Subgroup analysis of the proportion of smokers and non-smokers in An. Group 1 has less than 1/3 of the non-smoking group. Group 2 has 1/3 of the smoking group over the non-smoking group.

Subgroup analysis of the proportion of smokers and non-smokers in An. Group 1 has less than 1/3 of the non-smoking group. Group 2 has 1/3 of the smoking group over the non-smoking group.