title: Cancer prevention campaigns and Internet access: promoting health or disease?
abstract: BACKGROUND
  The Internet has become the most popular source of reference on health-related issues. However, little has been invested in studies that use it as a tool to evaluate health-related cultural events as cancer prevention campaigns.
  
  
  OBJECTIVE
  To correlate audience patterns on the web pages of a Brazilian Ministry of Health (MOH) cancer institute (http://www.inca.gov.br) with government campaigns in this area.
  
  
  METHODS
  24 consecutive months of observational study of a cancer site sponsored by the MOH, using a commercial software package to analyse electronic records (log files) of all visitors' movements. Variables observed included number of visits, time spent on each visit and the monthly return rate at six selected pages (three relating to cancer as a disease and three to prevention measures).
  
  
  RESULTS
  The audience was observed to grow gradually over the 2 years, with peaks in the periods around the campaigns. The topics of most interest were concentrated in pages on cancer diagnostic and treatment technology. Pages on preventive measures were less visited during the campaigns, and their audience varied little over the 24 months.
  
  
  CONCLUSIONS
  A historical analysis of log files for reference sites revealed interesting patterns that may be helpful for planning and evaluating institutional campaigns.
  
  
  CONCLUSIONS
  in view of the results of this study, the website was improved to offer better information on preferred topics and to include more links with prevention-related pages. Log file assessment after health campaigns could provide useful input to planning.
authors.affiliation: Federal University of Rio de Janeiro-UNIRIO, Rua das Laranjeiras 91/1202, CEP 22240-000, Rio de Janeiro, Brazil. bioeticaunirio@yahoo.com.br
authors.forename: P R
authors.initials: PR
authors.lastname: Vasconcellos-Silva
authors.forename: L D
authors.initials: LD
authors.lastname: Castiel
authors.forename: R H
authors.initials: RH
authors.lastname: Griep
authors.forename: M
authors.initials: M
authors.lastname: Zanchetta
mesh_terms: D001938:Brazil; D006078:Government Programs; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D007255:Information Services / Q000706:statistics & numerical data; D020407:Internet / Q000706:statistics & numerical data*; D009369:Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D015397:Program Evaluation / Q000379:methods; D013997:Time Factors