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Association between clean indoor air laws and voluntary smokefree rules in homes and cars
  1. Kai-Wen Cheng1,
  2. Cassandra A Okechukwu2,
  3. Robert McMillen3,
  4. Stanton A Glantz4
  1. 1College of Public Health, Institute of Health Policy and Management, National Taiwan University, Taipei, Taiwan
  2. 2Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Massachusetts, USA
  3. 3Department of Psychology and the Social Science Research Center, Mississippi State University, Starkville, Mississippi, USA
  4. 4Department of Medicine, University of California San Francisco, San Francisco, California, USA
  1. Correspondence to Dr Kai-Wen Cheng, College of Public Health, Institute of Health Policy and Management, National Taiwan University, No. 17 Xu-Chow Rd, Room 621, Taipei 100, Taiwan; kwcheng19{at}ntu.edu.tw

Abstract

Objectives This study examines the influence that smokefree workplaces, restaurants and bars have on the adoption of smokefree rules in homes and cars, and whether there is an association with adopting smokefree rules in homes and cars.

Methods Bivariate probit models were used to jointly estimate the likelihood of living in a smokefree home and having a smokefree car as a function of law coverage and other variables. Household data were obtained from the nationally representative Social Climate Survey of Tobacco Control 2001, 2002 and 2004–2009; clean indoor air law data were from the American Nonsmokers’ Rights Foundation Tobacco Control Laws Database.

Results ‘Full coverage’ and ‘partial coverage’ smokefree legislation is associated with an increased likelihood of having voluntary home and car smokefree rules compared with ‘no coverage’. The association between ‘full coverage’ and smokefree rule in homes and cars is 5% and 4%, respectively, and the association between ‘partial coverage’ and smokefree rules in homes and cars is 3% and 4%, respectively. There is a positive association between the adoption of smokefree rules in homes and cars.

Conclusions Clean indoor air laws provide the additional benefit of encouraging voluntary adoption of smokefree rules in homes and cars.

  • Secondhand Smoke
  • Public Policy
  • Prevention

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