Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 50 11 2012 11 15 746 754 EN Asghar Mohammadpoorasl Department of Public Health, School of Public Health, Qazvin University of Medical Sciences, Qazvin, Iran. Sahrnaz Nedjat Department of Epidemiology and Biostatistics, School of Public Health, Knowledge Utilization Research Center, Tehran University of Medical Sciences, Tehran, Iran. Ali Fakhari Clinical Psychiatry Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. Kamran Yazdani Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Abbas Rahimi Foroushani Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Akbar Fotouhi Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. 2015 09 28 The aim of this study is determining the prevalence of smoking stages in adolescents of Tabriz city (northwest of Iran) and identifying the personal, environmental, and psychological factors relating to cigarette smoking. Fifty-seven high schools were randomly selected, and 4903 students were completed a self-administered questionnaire about cigarette smoking and the related risk factors. The association of independent variables with cigarette smoking was evaluated using the ordinal logistic regression model. In total, 17.3% of the participants were experimenters (95% CI: 15.8-18.9) and 5.0% were regular smokers (95% CI: 3.7-6.2). The results showed that the male gender (OR=2.92; CI: 1.94-4.77), age (OR=1.27; CI: 1.02-1.64), having general risk taking behavior (OR=1.50; CI: 1.02-2.21), presence of a cigarette smoker in the family (OR=1.78; CI: 1.23-2.54), friendship with close cigarette smoker friends (OR=2.52; CI: 1.65-3.86), substance abuse experience (OR=8.27; CI: 2.61-25.61), attitude toward cigarette smoking (OR=1.22; CI: 1.10-1.27) and positive thinking about cigarette smoking (OR=1.05; CI: 1.01-1.14) are associated to cigarette smoking in adolescents. The cigarette smoking prevalence is minimal in Tabriz city adolescents, especially in girls; but the experimenter prevalence is considerable. Findings of this study justifies adopting more serious measures in the pre-adolescence and adolescence period. https://acta.tums.ac.ir/index.php/acta/article/view/3987 https://acta.tums.ac.ir/index.php/acta/article/download/3987/3962