title: Knowledge about electronic cigarettes and its perception: a community survey, Egypt.
abstract: Electronic cigarettes are promoted as safer products than traditional cigarettes and as smoking cessation devices. Awareness and perception are key elements for the adoption of new habits. Little is known about electronic cigarettes and public opinions towards it. This study aims to identify the prevalence of knowledge about electronic cigarettes, its perception, and use among Egyptian population.
  
  
  
  An observational cross-sectional study using self-administered questionnaire in Arabic language was conducted between March and April 2015 among a sample of Egyptian population aged 15-75 years (N = 1239). We compared between respondent's who know e-cigarettes and those who do not know it.
  
  
  
  More than half (57.5 %) of the respondents had heard about e-cigarettes, 51.8 % were non-smokers and nobody of them reported use of e-cigarettes. There were statistically significant differences between those who know and those who do not know e-cigarettes regarding age, educational levels and history of smoking. Among those who know e-cigarettes, 41.6 % believed that e-cigarettes help smoking cessation and 31.9 % believed it is less harmful than traditional cigarettes.
  
  
  
  A considerable level of knowledge about e-cigarettes is found among young people aged 15-39 years. E-cigarettes were perceived as less harmful than traditional cigarettes or a smoking cessation aid. None of the respondents reported use of e-cigarettes.
authors.affiliation: Community and Occupational Medicine Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
authors.forename: Omaima I
authors.initials: OI
authors.lastname: Abo-Elkheir
authors.affiliation: Pulmonary Medicine Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt. emansobh2012@Gmail.com.|Pulmonary Medicine Department, Al-Zahraa University Hospital, 11517, Al-Abbassia, Cairo, Egypt. emansobh2012@Gmail.com.
authors.forename: Eman
authors.initials: E
authors.lastname: Sobh
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003257:Consumer Product Safety; D003430:Cross-Sectional Studies; D004534:Egypt; D066300:Electronic Nicotine Delivery Systems; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D010465:Perception; D018570:Risk Assessment; D012307:Risk Factors; D016540:Smoking Cessation / Q000379:methods*; D011795:Surveys and Questionnaires; D000072137:Vaping / Q000009:adverse effects / Q000639:trends*; D055815:Young Adult
keywords: Community survey; Electronic cigarettes; Knowledge; Perception; Smoking