摘要:Background: Smoking is one of the most important risk factors for health and also health problems, such as heart diseases, especially for young people. This study aimed to investigate the effect of factorsrelated to smoking among the secondary high school students in the city of Marivan (Kurdistan?Iran), in 2015, based on the constructs of health belief model (HBM). Methods: This cross?sectional studywas conducted in 470 secondary high school students in Marivan in 2015. The samples were selectedby random cluster sampling. A question with four sections was used to collect data (demographicquestions, knowledge section, attitude section, and questions related to e constructs of HBM). Results: According to the results, the correlation of smoking was stronger with attitude (r=0.269and odds ratio=0.89) but weaker with perceived barriers (r=0.101). There was not a significantcorrelation between smoking behavior and knowledge of the harms of smoking (r=?0.005). Moreover, Cues to action was effective predictor of smoking behavior (r=0.259). Conclusions: Thefindings of this study show that the prevalence of smoking in the studied sample is somewhat lowerthan other regions of Iran, but it should be noted that if no interventions are done to prevent smokingin this age group. The findings of the study also showed that the structure of attitudes, self?efficacy, and Cues to action are the strongest predictors of smoking among students. Albeit, attitude wasstrongest predictor of smoking that shows the prevalence of smoking can be reduced by focusingin this part. Considering the mean age of participants (16.2 ± 0.25 years), that shows the riskiestperiod for smoking is 16 years and authorities can make change in policies of cigarette selling onlyfor over 18 years.