The effect of smoking on years of healthy life (YHL) lost among middle-aged and older Americans.
To estimate the effects of smoking on quality of life over time, using the Years of Healthy Life (YHL) construct.The Health and Retirement Study (HRS) survey (N=12,652) of persons 50 to 60 years old and the Asset and Health Dynamics Among the Oldest Old (AHEAD) survey (N=8,124) of persons > or =70 years old, plus spouses regardless of age, followed from 1992/1993 to 2000.Years of healthy life from baseline to death were estimated. Regression models were developed with smoking as the main explanatory variable and with both YHL and years of life remaining as the outcome variables.Smoking was strongly and consistently related to YHL lost. In HRS, individuals who had quit smoking at least 15 years prior to baseline had a similar number of YHL left as never smokers.Efforts to encourage smoking cessation should emphasize the impact of these factors on quality of life.
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