Abstract: Objective： To investigate the behavior of tobacco use among migrants in construction sites and explore the associated factors. Methods: A total of 652 migrants in 10 construction sites were selected in Xi’an and Tongchuan. Chi-square and logistic regression were used to analyze the influencing factors of tobacco use. Results: The average age of the migrants in the construction site was (38.23±10.61), and males occupied 82.7% (535/647) of the total. The current smoking rate of the migrants was 55.8% (364/652), with 64.3% (344/535) in males and 14.3% (16/112) in females. 82.5% (329/399) smokers wanted to quit smoke, however only 52.7%(210/399) had tried quitting smoking in action, and 8.8%(35/399) quitted smoking successfully. Multivariable regression indicated that the migrants who were at lower age, and sick within 2 weeks, had perceived not difficult to stop smoking and who disagree with the benefits of smoking were more likely to try to quit smoking. Conclusion: Migrants in construction sites show their characteristics of old age, low level of health literacy, maledomination, high smoking rate and high intention of quitting smoking. Tobacco control projects should be implemented in construction sites to promote the translation of smoking quitting intention into action.

Key words: Smoking, Smoking cessation, Transients and migrants, Construction site