The impact of smoking on health-related and overall quality of life: a general population survey in Finland

The objective of the study was to examine the association between overall and health-related quality of life and smoking in men and women of discrete smoking groups in Finland. The design was a Health 2000 Survey, conducted in Finland 2000--2001. The setting and participants were a two-stage, stratified, nationally representative cluster sample that comprised 8,028 persons aged 30 or over living in mainland Finland. Health-related quality of life was measured by the 15D questionnaire; and overall quality of life was assessed by a single question measure capturing the respondent's own perception and estimation of his/her quality of life. The present study showed that daily smokers had both lower health-related and overall quality of life than never-smokers among the Finnish adult population. Health-related quality of life profiles showed that daily smokers did worse than never-smokers in a considerable number of the health dimensions. The effects of smoking were observed not only through health: the daily smokers registered significantly lower ratings of overall quality of life compared with never-smokers, too. Both the health-related and overall quality of life of ex-smokers approached those of never-smokers. The results of the present study suggest that improved health is not the only benefit of smoking cessation; better quality of life and more fulfilling everyday living can also be expected. As the major health consequences of smoking usually manifest themselves only after several years of smoking, both health-related and overall quality of life measurements could be used as an intervention tool for motivating people to quit.