Mortality in Relation to Smoking History: 13 Years’ Follow-Up of 68,000 Norwegian men and Women 35-49 Years
Tverdal A~~Thelle D~~et al
44,290 men & 24,535 women aged 35-49 were followeed for an average of 13.3 years with respect to different causes of death. The highest suicide rate was seen among the cigarette-only smokers, whereas pipe smokers had the lowest rate. For both genders, there was an increase in suicide & accident mortality with an increase in the number of cigarettes smoked each day. In this study, a large part of the cigarette-suicide relationship could be explained by the confounding of stress factors.