background: passive or environmental smoking is one of the important health problems, to which many adults and children are exposed in involuntary status. methods: in this hospital based case-control study, household exposure to tobacco smoke as an estimate of passive smokers was conducted in hamadan, western iran. the purpose was to find the relationship between environmental smoking and incid...

several epidemiological studies have reported that passive smoking (ps) is a public health hazard and perhaps increases the risk of heart disease. this study evaluated the relationship between female coronary heart disease and ps among married women who described themselves as non-smokers in an area of south-east iran. using household exposure to tobacco smoke as an estimate of ps, a hospitalba...

BACKGROUND Studies have identified that environmental tobacco smoke exposure is associated with sociodemographic factors such as age, sex, and socioeconomic status, but few studies have been conducted in South Korea. In this study, the authors investigated the extent of environmental tobacco smoke exposure and factors related in a nationally representative sample of Korean adults. METHODS The...

Reports of formaldehyde levels in mainstream, sidestream, and environmental tobacco smoke from nine studies are reviewed. Considerable disparity exists between formaldehyde production rates determined from mainstream-sidestream studies and those reporting levels in environmental tobacco smoke. Tobacco smoke does not appear to increase vapor-phase formaldehyde levels significantly in indoor envi...

KEY FINDINGS Data from the National Health and Nutrition Examination Survey, 1999-2010. From 1999 to 2010, the percentage of children without asthma exposed to environmental tobacco smoke (ETS) decreased from 57.3% to 44.2%, while children with asthma showed no change, with 57.9% exposed to ETS in 1999-2002 and 54.0% exposed in 2007-2010. In 2007-2010, a higher percentage of children with asthm...