title: E-cigarette use among students and e-cigarette specialty retailer presence near schools.
abstract: This study examined the association between presence of e-cigarette specialty retailers near schools and e-cigarette use among middle and high school students in Orange County (OC), CA.
  
  
  
  The OC subsample of the 2013-2014 California Healthy Kids Survey (N=67,701) was combined with geocoded e-cigarette retailers to determine whether a retailer was present within one-quarter mile of each public school in OC. Multilevel logistic regression models evaluated individual-level and school-level e-cigarette use correlates among middle and high school students.
  
  
  
  Among middle school students, the presence of an e-cigarette retailer within one-quarter mile of their school predicted lifetime e-cigarette use (OR=1.70, 95% CI=1.02, 2.83), controlling for confounders but no effect for current use. No significant effect was found for high school students.
  
  
  
  E-cigarette specialty retailers clustered around schools may be an environmental influence on student e-cigarette experimentation.
authors: Department of Sociology, Environmental Science & Policy Program, Chapman University, One University Drive, Orange, CA 92866, United States.
authors: Georgiana
authors: G
authors: Bostean
authors: Department of Biostatistics, UCLA Fielding School of Public Health, 650 Charles E. Young Dr. South, 51-254 CHS, Los Angeles, CA 90095-1772, United States. Electronic address: ccrespi@ucla.edu.
authors: Catherine M
authors: CM
authors: Crespi
authors: Environmental Management, University of San Francisco, Harney Science Center, 2130 Fulton, Street, San Francisco, CA 94117-1080, United States. Electronic address: pvorapharuek@gmail.com.
authors: Patsornkarn
authors: P
authors: Vorapharuek
authors: UCLA Fielding School of Public Health, Center for Cancer Prevention & Control Research, A2-125 CHS, 650 Charles Young Drive, Los Angeles 90095-6900, United States. Electronic address: wmccarth@ucla.edu.
authors: William J
authors: WJ
authors: McCarthy
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D002140:California / Q000453:epidemiology; D002648:Child; D003132:Commerce; D066300:Electronic Nicotine Delivery Systems / Q000706:statistics & numerical data*; D005260:Female; D040362:Geographic Information Systems; D006306:Health Surveys; D006801:Humans; D016015:Logistic Models; D008297:Male; D008385:Marijuana Smoking / Q000453:epidemiology; D012111:Residence Characteristics / Q000706:statistics & numerical data; D012307:Risk Factors; D012574:Schools; D012907:Smoking / Q000453:epidemiology*; D013334:Students
keywords: Adolescence; E-cigarette; Geographic information systems; Retail environment; Substance use