title: [Causes for the underreporting of adverse drug events by health professionals: a systematic review].
abstract: OBJECTIVE
  Identifying the main causes for underreporting of Adverse Drug Reaction (ADR) by health professionals.
  
  
  METHODS
  A systematic review carried out in the following databases: LILACS, PAHO, SciELO, EMBASE and PubMed in the period between 1992 and 2012. Descriptors were used in the search for articles, and the identified causes of underreporting were analyzed according to the classification of Inman.
  
  
  RESULTS
  In total, were identified 149 articles, among which 29 were selected. Most studies were carried out in hospitals (24/29) for physicians (22/29), and pharmacists (10/29). The main causes related to underreporting were ignorance (24/29), insecurity (24/29) and indifference (23/29).
  
  
  CONCLUSIONS
  The data show the eighth sin in underreporting, which is the lack of training in pharmacovigilance. Therefore, continuing education can increase adherence of professionals to the service and improve knowledge and communication of risks due to drug use.
authors.affiliation: Faculty of Pharmaceutical Sciences, São Paulo State University "Júlio de Mesquita Filho", Araraquara, SP, Brazil.
authors.forename: Fabiana Rossi
authors.initials: FR
authors.lastname: Varallo
authors.affiliation: Faculty of Pharmaceutical Sciences, São Paulo State University "Júlio de Mesquita Filho", Araraquara, SP, Brazil.
authors.forename: Synara de Oliveira Paim
authors.initials: Sde O
authors.lastname: Guimarães
authors.affiliation: Faculty of Pharmaceutical Sciences, São Paulo State University "Júlio de Mesquita Filho", Araraquara, SP, Brazil.
authors.forename: Samir Antonio Rodrigues
authors.initials: SA
authors.lastname: Abjaude
authors.affiliation: Faculty of Pharmaceutical Sciences, São Paulo State University "Júlio de Mesquita Filho", Araraquara, SP, Brazil.
authors.forename: Patricia de Carvalho
authors.initials: Pde C
authors.lastname: Mastroianni
mesh_terms: D016907:Adverse Drug Reaction Reporting Systems / Q000706:statistics & numerical data*; D006282:Health Personnel; D006801:Humans