title: [Perceived norms among Peruvian students for drug use among peers].
abstract: OBJECTIVE
  to evaluate the difference between perceived norms about drug use among peer and actual drug use as reported by the same university students. The students were between 18 and 24 years old and attended health courses.
  
  
  METHODS
  cross-sectional study based on a survey, using an anonymous questionnaire filled out by the students.
  
  
  RESULTS
  There were 306 participants. Senior students used drugs as follows: 51.3% used tobacco, 90.8% used alcohol, 5.9% used marijuana, and 0.7% used cocaine. Differences were observed between perceived norms and actual drug use for tobacco (70% vs. 51.3%), marijuana (10% vs. 5.9%) and cocaine (8.3% vs. 0.7%).
  
  
  CONCLUSIONS
  university students presented an overestimated rate for the use of tobacco, marijuana and cocaine among their peers.
authors.affiliation: Facultad de Salud Pública y Administración Carlos Vidal Layseca, Universidad Peruana Cayetano Heredia, Peru. ibustama@jhsph.edu
authors.forename: Inés V
authors.initials: IV
authors.lastname: Bustamante
authors.forename: Carol
authors.initials: C
authors.lastname: Strike
authors.forename: Bruna
authors.initials: B
authors.lastname: Brands
authors.forename: John
authors.initials: J
authors.lastname: Cunningham
authors.forename: Maria da Gloria Miotto
authors.initials: Mda G
authors.lastname: Wright
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D008297:Male; D010379:Peer Group; D010568:Peru; D019966:Substance-Related Disorders / Q000453:epidemiology; D055815:Young Adult