Introduction:
Compliance of bars in Greece to the smoke-free legislation is non-existent, leaving nonsmokers exposed to secondhand smoke when visiting bars. The aim of the current study was to determine individual factors associated with support for smoking bans in bars among adult smokers and non-smokers in Greece to assist policymakers in efforts to improve compliance of the bans.

Material and Methods:
A secondary analysis of the 2013 Greek Global Adult Tobacco Survey was conducted using multiple logistic regression to analyze individual factors associated with support of smoking ban in bars.

Results:
Smokers were less likely to support the ban than non-smokers. Individual factors associated with support for smoking bans in bars among smokers and non-smokers in Greece included older age, beliefs of secondhand smoke and knowledge of diseases caused by smoking. Those aged over 65 years and older were more likely to support the ban than those aged 15-24 years (p<0.05). A person who believed secondhand smoke causes lung cancer was significantly more likely (p<0.05) to support the ban. A significant increase in the likelihood of supporting the ban also occurred with increased knowledge of the harmful effects of tobacco in both smokers and non-smokers.

Conclusions:
Interventions to advance health literacy and change beliefs surrounding the harms of tobacco smoking could improve voluntary compliance to smoke-free legislation by smokers in Greece.