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Danish National Lymphoma Registry

Authors Arboe B, Josefsson P, Jørgensen J, Haaber J, Jensen P, Poulsen C, Rønnov-Jessen D, Pedersen RS, Pedersen P, Frederiksen M, Pedersen M, de Nully Brown P

Received 12 November 2015

Accepted for publication 8 February 2016

Published 25 October 2016 Volume 2016:8 Pages 577—581

DOI https://doi.org/10.2147/CLEP.S99470

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 6

Editor who approved publication: Professor Vera Ehrenstein


Bente Arboe,1 Pär Josefsson,2 Judit Jørgensen,3 Jacob Haaber,4 Paw Jensen,5 Christian Poulsen,6 Dorthe Rønnov-Jessen,7 Robert S Pedersen,8 Per Pedersen,9 Mikael Frederiksen,10 Michael Pedersen,1 Peter de Nully Brown1

1Department of Hematology, Copenhagen University Hospital, Rigshospitalet, 2Department of Hematology, Copenhagen University Hospital, Herlev Hospital, Copenhagen, 3Department of Hematology, Aarhus University Hospital, Aarhus, 4Department of Hematology, Odense University Hospital, Odense, 5Department of Hematology, Aalborg University Hospital, Aalborg, 6Department of Hematology, Roskilde Hospital, Roskilde, 7Department of Hematology, Vejle Hospital, Vejle, 8Department of Hematology, Holstebro Hospital, Holstebro, 9Department of Hematology, Esbjerg Hospital, Esbjerg, 10Department of Hematology, Haderslev Hospital, Haderslev, Denmark


Aim of database: The Danish National Lymphoma Registry (LYFO) was established in order to monitor and improve the diagnostic evaluation and the quality of treatment of all lymphoma patients in Denmark.
Study population: The LYFO database was established in 1982 as a seminational database including all lymphoma patients referred to the departments of hematology. The database became nationwide on January 1, 2000.
Main variables: The main variables include both clinical and paraclinical variables as well as details of treatment and treatment evaluation. Up to four forms are completed for each patient: a primary registration form, a treatment form, a relapse form, and a follow-up form. Variables are used to calculate six result quality indicators (mortality 30 and 180 days after diagnosis, response to first-line treatment, and survival estimates 1, 3, and 5 years after the time of diagnosis), and three process quality indicators (time from diagnosis until the start of treatment, the presence of relevant diagnostic markers, and inclusion rate in clinical protocols).
Descriptive data: Approximately 23,000 patients were registered in the period 1982–2014 with a median age of 65 years (range: 16–100 years) and a male/female ratio of 1.23:1. Patients can be registered with any of 42 different subtypes according to the World Health Organization classifications.
Conclusion: LYFO is a nationwide database for all lymphoma patients in Denmark and includes detailed information. This information is used for both epidemiological research and clinical follow-up as well as for administrative purposes.

Keywords: lymphoma, treatment, clinical database, quality assurance

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