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Household environmental tobacco smoke exposure in healthy young children in Hong Kong: Prevalence and risk factors

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  • Siyu Dai
  • Kate Ching Ching Chan

Abstract

Background: Environmental tobacco smoke (ETS) exposure attributable respiratory illness burden is huge in paediatric population. Understanding the epidemiology of ETS exposure is important to guide health promotion planning. Therefore, we designed this study to determine the prevalence of household ETS exposure in healthy young children under 2 years of age in Hong Kong, and to explore risk factors associated with the exposure. Our secondary goal was to characterise children’s exposure profile to maternal smoking. Methods: A secondary analysis was performed based on the data collected from our 2013–2014 territory-wide cross-sectional pneumococcal carriage surveillance study, with a sample size of 1541. We conducted descriptive analysis for exposure prevalence, univariate and multivariate analysis for identification of risk factors. Results: 1541 children (mean age: 11.2 ± 6.4 months, male: 50.7%) were included in the analysis. The overall prevalence of current household ETS exposure was 31.5%, prevalence of prenatal and postnatal maternal smoking was 3.5% and 1.6% respectively. Independent factors associated with children’s ETS exposure were: never breastfed (AOR: 1.48, 95% CI: 1.13–1.93, p = 0.004); prenatal maternal smoking (AOR: 7.46, 95% CI: 2.73–20.39, p

Suggested Citation

  • Siyu Dai & Kate Ching Ching Chan, 2020. "Household environmental tobacco smoke exposure in healthy young children in Hong Kong: Prevalence and risk factors," PLOS ONE, Public Library of Science, vol. 15(1), pages 1-13, January.
    • Handle: RePEc:plo:pone00:0227733
    DOI: 10.1371/journal.pone.0227733
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    Cited by:

    1. Rodney Mudau & Kuku Voyi & Joyce Shirinde, 2024. "Prevalence of Wheezing and Its Association with Environmental Tobacco Smoke Exposure among Rural and Urban Preschool Children in Mpumalanga Province, South Africa," IJERPH, MDPI, vol. 21(4), pages 1-20, April.

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