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Comparative Study
. 2009 May;51(5):612-9.
doi: 10.1097/JOM.0b013e31819cb222.

Impact of an indoor smoking ban on bar workers' exposure to secondhand smoke

Susan J Bondy  1 , Bo Zhang, Nancy Kreiger, Peter Selby, Neal Benowitz, Heather Travis, Ana Florescu, Nicole R Greenspan, Roberta Ferrence
Affiliations
Comparative Study

Impact of an indoor smoking ban on bar workers' exposure to secondhand smoke

Susan J Bondy et al. J Occup Environ Med. 2009 May.

Abstract

Objective: To evaluate the impact of an indoor smoke-free bylaw in Toronto, Ontario, implemented June 2004.

Methods: We used a pre-post comparison design to assess secondhand smoke (SHS) exposure among 79 eligible bar workers in Toronto, Ontario (bylaw enacted), and 49 eligible bar workers in a control community, Windsor, Ontario (no bylaw change), at four times: preban, and 1, 2, and 9 months postban.

Results: SHS exposure time and urinary cotinine level were substantially reduced in Toronto bar workers immediately after the ban by 94% (from 7.8 to 0.5 hours) and 68% (from 24.2 to 7.8 ng/mL), respectively. The reduction was sustained throughout follow-up. There was no change among Windsor bar workers before and after the ban.

Conclusions: Compliance with the ban was high, and the ban led to a substantial reduction in SHS exposure.

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