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Tob Control. 2016 May;25(3):307-12. doi: 10.1136/tobaccocontrol-2014-052077. Epub 2015 Mar 25.

Exposure to secondhand smoke in the home and mental health in children: a population-based study.

Author information

1
Department of Public Health Sciences, University of Miami Miller School of Medicine, Clinical Research Building, Miami, Florida, USA.
2
National Centre for Epidemiology, Instituto de Salud Carlos III, Madrid, Spain Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, Madrid, Spain.
3
Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, Madrid, Spain CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain.
4
Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia-ICO, L'Hospitalet de Llobregat, Barcelona, Spain Cancer Control and Prevention Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain Department of Clinical Sciences, Universitat de Barcelona, Campus de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain.
5
Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia-ICO, L'Hospitalet de Llobregat, Barcelona, Spain Cancer Control and Prevention Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain.

Abstract

OBJECTIVES:

To examine the association between exposure to secondhand smoke (SHS) in the home and mental health among children.

METHODS:

Cross-sectional study of 2357 children representative of the Spanish population aged 4-12 years in 2011-2012. Duration of SHS exposure in children was reported by parents. Probable mental disorder was defined as a score>90th centile in the parental version of the Strengths and Difficulties Questionnaire (SDQ). Statistical analysis was performed with logistic regression and adjusted for sociodemographic variables, lifestyle, neighbourhood environment and family characteristics, including parental mental health.

RESULTS:

Among study participants, 6.9% (95% CI 5.7% to 8.0%) were exposed to SHS in the home for <1 h/day and 4.5% (95% CI 3.5% to 5.5%) for ≥1 h/day. Compared to children not habitually exposed to SHS, the multivariate ORs for probable mental disorder were 1.49 (95% CI 0.85 to 2.62) for SHS exposure<1 h/day and 2.73 (95% CI 1.38 to 5.41) for SHS exposure≥1 h/day (p for linear trend=0.002). The corresponding ORs for attention-deficit and hyperactivity disorder (ADHD) were 2.18 (95% CI 1.30 to 3.64) for <1 h/day exposure and 3.14 (95% CI 1.63 to 6.04) for ≥1 h/day exposure (p for linear trend<0.001). No association was found between SHS and the rest of the components of the SDQ.

CONCLUSIONS:

Among children, SHS exposure in the home during ≥1 h/day is associated with a higher frequency of mental disorder. This association was mostly due to the impact of SHS on ADHD.

KEYWORDS:

Prevention; Priority/special populations; Secondhand smoke; Smoking Caused Disease

[Indexed for MEDLINE]

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