Characterization of urinary cotinine concentrations among non-smoking adults in smoking and smoke-free homes in the Korean national environmental health survey (KoNEHS) cycle 3 (2015–2017)

Autor:	In-Keun Shim, Hyen-Mi Chung, Jungmin Ryu, Jeonghoon Kim, Jongchun Lee, Soo Ran Won
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Adult medicine.medical_specialty Smoking home Urinary system Tobacco smoke Smoke-free home Young Adult 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Secondhand smoke Environmental health Republic of Korea Epidemiology Humans Medicine 030212 general & internal medicine Cotinine KoNEHS Smoke 030505 public health business.industry Research Public health Public Health Environmental and Occupational Health Ventilation Confidence interval chemistry Tobacco Smoke Pollution Biostatistics Public aspects of medicine RA1-1270 0305 other medical science business Environmental Health
Zdroj:	BMC Public Health, Vol 21, Iss 1, Pp 1-11 (2021) BMC Public Health
ISSN:	1471-2458
Popis:	Background Although many indoor public places have implemented smoke-free regulations, private homes have remained sources of tobacco smoke pollutants. This study examined differences in urinary cotinine concentrations in the Korean non-smoking adult population between living in smoking and smoke-free homes, and the relationship of urinary cotinine concentrations with socio-demographic factors in smoke-free homes. Methods Samples from 2575 non-smoking adults (≥19 years old) in the Korean National Environmental Health Survey cycle 3 (2015–2017), a representative Korean study, were used. Smoking and smoke-free homes were defined based on whether there were smokers at homes. Weighted linear regression models were used to determine urinary cotinine concentrations and identify factors associated with urinary cotinine. Results The geometric mean of urinary cotinine concentrations for non-smoking adults living in smoking homes was 2.1 μg/L (95% confidence interval [CI] = 1.8–2.4), which was significantly higher than the mean of 1.3 μg/L (95% CI = 1.2–1.4) for those living in smoke-free homes. Urinary cotinine concentrations were different significantly by home smoking status in most socio-demographic subgroups. Data from smoke-free home showed urinary cotinine concentration in adults was significantly higher in those who lived in homes with ventilation duration Conclusions The urinary cotinine concentration in Korean non-smoking adults living in smoking homes was higher than that in adults living in smoke-free homes. Even in smoke-free homes, home-related factors, such as ventilation duration and time spent indoors, were associated with urinary cotinine concentration. Further study is warranted to examine potential sources of tobacco smoke pollution in smoke-free homes.
Databáze:	OpenAIRE
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