• A positive dose–response relationship between secondhand-smoke exposure, either self-reported or shown by the presence of biomarkers, supports the conclusion of causality.

• Given those findings, the high prevalence of secondhand smoke in the U.S. general population has important implications for public health.

Bailar, J. C., 3rd. 1999. Passive smoking, coronary heart disease, and meta-analysis. New England Journal of Medicine 340(12):958-959.

Barnoya, J., and S. A. Glantz. 2005. Cardiovascular effects of secondhand smoke: Nearly as large as smoking. Circulation 111(20):2684-2698.

Butler, T. L. 1988. The relationship of passive smoking to various health outcomes among Seventh-Day Adventists in California. Doctoral Dissertation. Los Angeles: University of California.

Cal EPA (California Environmental Protection Agency). 2005. Proposed identification of environmental tobacco smoke as a toxic air contaminant. Part B: Health effects. Sacramento: California Environmental Protection Agency.

Chen, R., R. Tavendale, and H. Tunstall-Pedoe. 2004. Environmental tobacco smoke and prevalent coronary heart disease among never smokers in the Scottish Monica surveys. Occupational & Environmental Medicine 61(9):790-792.

Chobanian, A. V., G. L. Bakris, H. R. Black, W. C. Cushman, L. A. Green, J. L. Izzo, Jr., D. W. Jones, B. J. Materson, S. Oparil, J. T. Wright, Jr., and E. J. Roccella. 2003. The seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: The JNC 7 report. JAMA 289(19):2560-2572.

Ciruzzi, M., P. Pramparo, O. Esteban, J. Rozlosnik, J. Tartaglione, B. Abecasis, J. César, J. De Rosa, C. Paterno, and H. Schargrodsky. 1998. Case-control study of passive smoking at home and risk of acute myocardial infarction. Journal of the American College of Cardiology 31(4):797-803.

Dobson, A. J., H. M. Alexander, R. F. Heller, and D. M. Lloyd. 1991. Passive smoking and the risk of heart attack or coronary death. Medical Journal of Australia 154(12):793-797.

Emmons, K. M., D. B. Abrams, R. Marshall, B. H. Marcus, M. Kane, T. E. Novotny, and R. A. Etzel. 1994. An evaluation of the relationship between self-report and biochemical measures of environmental tobacco smoke exposure. Preventive Medicine 23(1):35-39.

Emmons, K. M., B. Thompson, Z. Feng, J. R. Hebert, J. Heimendinger, and L. Linnan. 1995. Dietary intake and exposure to environmental tobacco smoke in a worksite population. European Journal of Clinical Nutrition 49(5):336-345.

Garland, C., E. Barrett-Connor, L. Suarez, M. H. Criqui, and D. L. Wingard. 1985. Effects of passive smoking on ischemic heart disease mortality of nonsmokers. A prospective study. American Journal of Epidemiology 121(5):645-650.

Greenland, P., M. D. Knoll, J. Stamler, J. D. Neaton, A. R. Dyer, D. B. Garside, and P. W. Wilson. 2003. Major risk factors as antecedents of fatal and nonfatal coronary heart disease events. JAMA 290(7):891-897.

Hackshaw, A. K., M. R. Law, and N. J. Wald. 1997. The accumulated evidence on lung cancer and environmental tobacco smoke. BMJ 315(7114):980-988.

He, J., S. Vupputuri, K. Allen, M. R. Prerost, J. Hughes, and P. K. Whelton. 1999. Passive smoking and the risk of coronary heart disease—a meta-analysis of epidemiologic studies. New England Journal of Medicine 340(12):920-926.