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  • Morten Schmidt, Sigrún Alba Jóhannesdóttir Schmidt, Jakob Sandegaard, Vera Ehrenstein, Lars Pedersen, Henrik Toft Sørensen
  • Medicine
  • Clinical epidemiology
  • 2015 (First Published: 1 November 2015)
  • BACKGROUND The Danish National Patient Registry (DNPR) is one of the world's oldest nationwide hospital registries and is used extensively for research. Many studies have validated algorithms forContinue Reading
  • Kari Furu, Bjoern Wettermark, Morten Andersen, Jaana E. Martikainen, Anna B. Almarsdottir, Henrik Toft Sørensen
  • Medicine
  • Basic & clinical pharmacology & toxicology
  • 2010 (First Published: 1 February 2010)
  • The Nordic countries have a long tradition of registry-based epidemiological research. Many population-based health registries were established in the 1960s, with use of unique personal identifiersContinue Reading
  • Sandra Kruchov Thygesen, Christian Fynbo Christiansen, Steffen Christensen, Timothy L Lash, Henrik Toft Sørensen
  • Medicine
  • BMC medical research methodology
  • 2011 (First Published: 1 December 2011)
  • BackgroundThe Charlson comorbidity index is often used to control for confounding in research based on medical databases. There are few studies of the accuracy of the codes obtained from theseContinue Reading
  • Morten Schmidt, Jacob Bonde Jacobsen, Timothy L Lash, Hans Erik Bøtker, Henrik Toft Sørensen
  • Medicine
  • BMJ
  • 2012 (First Published: 25 January 2012)
  • OBJECTIVES To examine 25 year trends in first time hospitalisation for acute myocardial infarction in Denmark, subsequent short and long term mortality, and the prognostic impact of sex andContinue Reading
    The Danish health care system provides partial reimbursement of most prescription medications in Denmark. The dispensation of prescription medications is registered in administrative databases. EachContinue Reading