[01] Hamid Y. Hussain, Department of community medicine, faculty of medicine, University of Baghdad, Baghdad, Iraq.

Background: Second-hand tobacco smoke is present in virtually all places where smoking takes place (at home, in the workplace, in bars, restaurants, public buildings, hospitals, public transport and educational institutions. objectives: To study the prevalence of second hand smoking among Iraqi adolescents ,to study some socio-demographic and epidemiological characteristics of affected population Methodology: A school-based analytical cross-sectional study conducted in primary, and secondary schools in, Baghdad/ Iraq. Age range (6-18) both genders, males and females, the adequate sample size selected was 1650; using Multistage stratified random sample technique, with proportional allocation according to the number of schools selected, number of classes as well as age and gender stratifications. Results: the prevalence of Passive smoking among child and adolescent groups enrolled in the study was 34.2% higher at younger age groups 17.2% among age (6-9) and 11.2% among (10-13) and 5.7% among(14-17), the difference was statistically significant P < 0.01. females are more exposed than male(18.7, 14.4 ) respectively and P <0.04, Indoor exposure showed significantly higher than outdoor (26.6, 9.4) respectively and P value < 0.002, passive smoking was more among those who exposed more than 3 days per week in comparison with less than 3 days P vale <0.03. poor knowledge on second hand smoking (19.5%) compare to those who have good knowledge (4.1%) p<0.003 same for believe (attitude) as it is more prevalent with those who do not believe in passive smoking hazards (24.9%), P,0.001. compare to 9.2% among believe in passive smoking, step was logistic regression analysis showed that the following factors are the main predictors for passive smoking impact, age (OR 2.08 95%CI 1.48-2.93, gender OR 1.8 95%CI 1.21-2.87, place of exposure 2.75 95%CI 1.62-4.68, knowledge OR 8.8 95% CI 4.65-14.39. Conclusion: Second hand smoking is highly prevalent among children and adolescents segments of Iraqi population, exposure to passive smoking strongly linked with age, gender, place of exposure, duration of exposure, knowledge and attitude factors.

Second Hand Smoking, Adolescent, Iraq

[01] Amina Shadab, The lethal dangers of passive smoking. An article Written on June 10, 2012 by Editor in Health, KRG, Kurdistan tribune, cited on 5th Jan 2014 on kurdistantribune.com/2012/lethal-dangers-of-passive-smoking [02] Jenkins, R.A., Guerin, M.R. & Tomkins, B.A. Properties and measure of environmental tobacco smoke. In: The Chemistry of Environmental Tobacco Smoke. Composition and Measurement, 2nd Ed., Boca Raton, FL, Lewis Publishers, CRC Press,2000 [03] WORLD HEALTH ORGANIZATION INTERNATIONAL AGENCY FOR RESEARCH ON CANCER, IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. Volume 83 (2004) Tobacco smoke and involuntary smoking, Leon France Expert meeting 11–18 June 2002. [04] WHO Report | World Health Statistics 2010 www.who.int/whosis/whostat/2010/en [05] Navas-Acien A, Peruga A, Breysse P et al. (2004).Secondhand tobacco smoke in public places in Latin America, 2002–2003. JAMA, 291: 2741–2745.doi:10.1001/jama.291.22.2741 PMID: 15187056. [06] Baker, R.R. & Proctor, C.J. (1990) The origins and properties of environmental tobacco smoke. Environ. int., 16, 231–245 [07] "The Health Consequences of Involuntary Exposure to Tobacco Smoke: A Report of the Surgeon General". Surgeon General of the United States. 2006-06-27. "Secondhand smoke exposure causes disease and premature death in children and adults who do not smoke". Cited on 9th Jan at http://www.cdc.gov/tobacco/data_statistics/sgr/2006/index.htm [08] Kessler. Samet JM ("Secondhand smoke: facts and lies". Secondhand smoke: facts and lies Salud Pública Méx 2008; Vol. 50(5):428-434 [09] Tong, EK; Glantz, SA "Tobacco industry efforts undermining evidence linking secondhand smoke with cardiovascular disease". Circulation 116 (16): 1845–54 on (2007-10-16). DOI:10.1161/CIRCULATIONAHA.107.715888. PMID 17938301. [10] Passive smoking and children. A report of the Tobacco Advisory Group of the Royal College of Physicians. London, RCP, March 2010. Citation ttp://www.rcplondon.ac.uk/sites/default/files/documents/passive-smoking-and-children.pdf [11] Le-Ha C, Beilin LJ, Burrows S, Huang RC, Oddy WH, Hands B, Mori TA Gender difference in the relationship between passive smoking exposure and HDL-cholesterol levels in late adolescence. J Clin Endocrinol Metab. 2013 May;98(5):2126-35. doi: 10.1210/jc.2013-1016. Epub 2013 Apr 30. [12] Annakarin Johansson1, Arne Halling2 and Göran Hermansson1Indoor and outdoor smoking Impact on children's health, Oxford Journals Medicine ,European Journal of Public Health,Volume 13, Issue 1,Pp. 61-66 [13] G D Cook, P H Whincup, M J Jarvis, D P Strachan, O Papacosta, A Bryant .Passive exposure to tobacco smoke in children aged 5-7 years: individual, family, and community factors, BMJ 1994; 308 doi: http://dx.doi.org/10.1136/bmj.308.6925.384 (Published 5 February 1994) Cite this as: BMJ 1994;308:384. [14] Sussman S, Levy D, Lich KH, Cené CW, Kim MM, Rohrbach LA, Chaloupka FJ: Comparing effects of tobacco use prevention modalities: need for complex system models. Tob Induc Dis 2013, 11(1):2. PubMed Abstract | BioMed Central Full Text | PubMed Central Full Text