@article {Pascual Martinez1370, author = {Natalia Pascual Martinez and Silvia Mart{\'\i}n Bote and Mar{\'\i}a Melgar Herrero and Cristina G{\'o}mez Rebollo and Cristina Villalba Moral and Rafael Castro Jim{\'e}nez}, title = {Patterns of Tobacco use Among Spanish Secondary School Students}, volume = {56}, number = {suppl 64}, elocation-id = {1370}, year = {2020}, doi = {10.1183/13993003.congress-2020.1370}, publisher = {European Respiratory Society}, abstract = {Objective: To analyze the prevalence and smoking pattern among high school students from different socioeconomic levels.Methods: Observational cross-sectional study in three schools with different economic levels in Cordoba province.A self-administered, anonymous and voluntary questionnaire was used. ANOVA,Chi-square and logistic regression were used.Results: 343 surveys were collected:218 concerted school(CS),45 public school(PubS) and 80 private school(PrS).Average age is 13-14 yrs with similar \% of girls and boys. Adolescents who have ever tried tobacco is higher in PubS(37.7\%)vs31.3\%(PrS)vs20.6\%(CS) p\<0.001,age of onset in all centres:10 yrs.Current tobacco use:22.2\%(PubS),8.7\%(PrS),6\%(CS)p\<0.001.Students know e-cigarette(EC):93.6\%(CS),100\%(PubS),98.8\%(PrS)p=0.047.Age of onset:12yrs(CS),14yrs(PubS and PrS).Current EC use:22.2\%(PubS)vs12.5\%(PrS)vs9.2\%(CS)p=0.014.Perceived risk of EC less harmful than tobacco:79.5\%(PubS),75.9\%(PrS),25.2\%(CS).Have ever smoked waterpipe:60\%(PrS),48.9\%(PubS),26.1\%(CS).Current use (1-2/week):17.5\%(PrS),11.1\%(PubS),9.6\%(CS). Perceived risk waterpipe more harmful than tobacco:45\%(CS),7\%(PubS),2.5\%(PrS).Specific information (EC,pipe):32.6\%(CS),26.7\%(PubS),21.3\%(PrS).Use of other substances:15.6\%(PubS),10\%(PrS),3.7\%(CS).Risk factors (tobacco):waterpipe: HR27,772(95\% CI 13,753-56,079)p\<0.00,other substances:HR17,624(95\% CI 5,810-53,546)p\<0.001. Lower age is a protective factor for tobacco:HR 0.542 (95\% CI 0.432-0.679) p\<0.001 and waterpipe:HR 0.383 (95\% CI 0.300-0.488)p\<0.001.Conclusions: Concerted school has a lower prevalence of tobacco in all its forms. Shisha and other substances use are risk factors for tobacco smoking. Younger age is a protective factor for both, tobacco and waterpipe use.FootnotesCite this article as: European Respiratory Journal 2020; 56: Suppl. 64, 1370.This abstract was presented at the 2020 ERS International Congress, in session {\textquotedblleft}Respiratory viruses in the "pre COVID-19" era{\textquotedblright}.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).}, issn = {0903-1936}, URL = {https://erj.ersjournals.com/content/56/suppl_64/1370}, eprint = {https://erj.ersjournals.com/content}, journal = {European Respiratory Journal} }