The aim of this study was to evaluate the association between environmental smoking restrictions, distinguished by site, and smoking cessation by Chinese urban residents. Recruited through multi-stage quota-sampling, residents in six Chinese cities were surveyed. Data were both individual-level and city-level. Among 4735 respondents, 715 were identified as successful quitters and 405 as unsuccessful. Multilevel logistic regression analysis showed smoking cessation to be associated with city-level public place and workplace restrictions and individual-level workplace and household restrictions. Results offer justification for decision-makers to implement environmental tobacco control policies and related public health interventions aimed at markedly diminishing the high smoking prevalence in China.
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