title: Smoking and Its Related Factors Among Iranian High School Students.
abstract: BACKGROUND
  In different studies, the prevalence of tobacco consumption has been growing in high schools boys.
  
  
  OBJECTIVE
  This study was conducted to determine the prevalence of smoking and its related factors among Iranian high school students in 2011.
  
  
  METHODS
  In this cross-sectional study, 450 male students from 15 high schools of Shahroud (northeast of Iran) were selected for evaluation of the knowledge, attitude and practices (KAP) of students regarding tobacco consumption.
  
  
  RESULTS
  Overall, 51% (95% CI: 46.5 - 55.7) of the students had positive history of smoking for at least one time and 7.1% (95% CI: 5 - 10) of them were current smokers. The most prevalent source of information about smoking was TV and radio programs (48%) and friends were the second source (22%). Based on the students' opinions, entertainment and smoker friends were the most important reasons for smoking tendency. There was significant statistical association between students smoking and positive family history of smoking (P value < 0.05).
  
  
  CONCLUSIONS
  The prevalence of smoking experince was very high among high school students. The most prevalent source of information about smoking was Iranian broadcasting companies. Positive family history of smoking and smoker friends were the important motivating factors toward smoking.
authors.affiliation: Department of Social Medicine, Yasuj University of Medical Sciences, Yasuj, IR Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Chaman
authors.affiliation: Center for Health related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, IR Iran.
authors.forename: Ahmad
authors.initials: A
authors.lastname: Khosravi
authors.affiliation: Department of Epidemiology and Biostatistics, Tehran University of Medical Sciences, Tehran, IR Iran.
authors.forename: Sima
authors.initials: S
authors.lastname: Sajedinejad
authors.affiliation: Environmental Health, Department of Environmental Health, Shahroud University of Medical Sciences, Shahroud, IR Iran.
authors.forename: Saeed
authors.initials: S
authors.lastname: Nazemi
authors.affiliation: National Secretariat of Tobacco Control, Center for Environmental and Occupational Health, Ministry of Health and Medical Education, Tehran, IR Iran.
authors.forename: Khadije
authors.initials: K
authors.lastname: Fereidoon Mohasseli
authors.affiliation: National Secretariat of Tobacco Control, Center for Environmental and Occupational Health, Ministry of Health and Medical Education, Tehran, IR Iran.
authors.forename: Behzad
authors.initials: B
authors.lastname: Valizade
authors.affiliation: Internist and Gastroenterologist, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, IR Iran.
authors.forename: Hamid
authors.initials: H
authors.lastname: Vahedi
authors.affiliation: Mazandaran University of Medical Sciences, Sari, IR Iran.
authors.forename: Ehsan
authors.initials: E
authors.lastname: Hosseinzadeh
authors.affiliation: Faculty of Public Health, Shahroud University of Medical Sciences, Shahroud, IR Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Amiri
keywords: Attitude; Iran; Knowledge; Smoking; Students
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