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Secondhand smoke (SHS) exposure is an important global health issue.1 2 The World Health Organization Framework Convention on Tobacco Control (WHO FCTC) obligates countries to protect people from SHS exposure in public places such as workplaces and public transport, whereas protection measures from SHS in the home are not addressed explicitly.3 The objective of this study was to investigate the prevalence of domestic SHS exposure and sociodemographical risk factors associated with SHS among a population in central Vietnam.
A dataset from population-based cross-sectional survey conducted in Khanh Hoa Province, central Vietnam, was analysed. The original survey was carried out from June to July 2006 for the purpose of collecting information on possible risk factors of childhood diseases. Data on 353 525 residents living in 75 828 …