title: Examining the use of an open digital health library for professionals.
abstract: BACKGROUND
  The Norwegian Electronic Health Library (The Library) is a website for health personnel. Most of the content is also open to the public. Usage statistics have risen sharply in the years 2010-2013.
  
  
  OBJECTIVE
  We wanted to find out whether the rise was caused by health personnel, the general public, or other factors.
  
  
  METHODS
  Since we lacked direct information, we had to use proxy data to shed light on our questions. We applied mixed methods (database of registered users, user survey, usage statistics, and statistics from suppliers), and triangulated between them.
  
  
  RESULTS
  Health personnel were our largest user group, but The Library was also accessed by students, patients, and other groups. Content in Norwegian was preferred to English language content. Concise, practical information was preferred to more comprehensive information. Patient leaflets were the most popular information type. Mobile phone visits differed from personal computer visits both in terms of time of day and what kind of information was viewed.
  
  
  CONCLUSIONS
  The Library was used mostly by health personnel, as intended, but our data are inconclusive regarding a possible change in user groups. There was a large degree of consistency in results when using different investigation methods. The survey points toward health personnel being the largest user group, and the usage statistics show that patient leaflets are the most popular content, being viewed by both health personnel and patients.
authors.affiliation: Norwegian Electronic Health Library, Norwegian Knowledge Centre for the Health Services, Oslo, Norway. rue@nokc.no.
authors.forename: Runar
authors.identifier: http://orcid.org/0000-0001-6572-4139
authors.initials: R
authors.lastname: Eggen
authors.forename: Kjell
authors.identifier: http://orcid.org/0000-0002-3672-0427
authors.initials: K
authors.lastname: Tjensvoll
authors.forename: Magne
authors.identifier: http://orcid.org/0000-0002-5180-1225
authors.initials: M
authors.lastname: Nylenna
keywords: Web log analysis; access to information; information dissemination; libraries, medical; search engine /statistics