Incidence and prevalence of multiple endocrine neoplasia 2A in Denmark 1901–2014: a nationwide study
Authors Mathiesen JS, Kroustrup JP, Vestergaard P, Stochholm K, Poulsen PL, Rasmussen ÅK, Feldt-Rasmussen U, Schytte S, Pedersen HB, Hahn CH, Bentzen J, Möller S, Gaustadnes M, Rossing M, Nielsen FC, Brixen K, Frederiksen AL, Godballe C
Received 19 May 2018
Accepted for publication 9 July 2018
Published 12 October 2018 Volume 2018:10 Pages 1479—1487
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 3
Editor who approved publication: Professor Vera Ehrenstein
Jes Sloth Mathiesen,1,2 Jens Peter Kroustrup,3 Peter Vestergaard,3,4 Kirstine Stochholm,5,6 Per Løgstrup Poulsen,5 Åse Krogh Rasmussen,7 Ulla Feldt-Rasmussen,7 Sten Schytte,8 Henrik Baymler Pedersen,9 Christoffer Holst Hahn,10 Jens Bentzen,11 Sören Möller,2,12 Mette Gaustadnes,13 Maria Rossing,14 Finn Cilius Nielsen,14 Kim Brixen,2 Anja Lisbeth Frederiksen,2,15 Christian Godballe1
1Department of ORL Head & Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark; 2Department of Clinical Research, University of Southern Denmark, Odense, Denmark; 3Department of Clinical Medicine and Endocrinology, Aalborg University Hospital, Aalborg, Denmark; 4Steno Diabetes Center North Jutland, Aalborg, Denmark; 5Department of Internal Medicine and Endocrinology, Aarhus University Hospital, DK-8000 Aarhus, Denmark; 6Center for Rare Diseases, Aarhus University Hospital, Aarhus N, Denmark; 7Department of Medical Endocrinology, Copenhagen University Hospital, Copenhagen, Denmark; 8Department of ORL Head and Neck Surgery, Aarhus University Hospital, Aarhus, Denmark; 9Department of ORL Head and Neck Surgery, Aalborg University Hospital, Aalborg, Denmark; 10Department of ORL Head and Neck Surgery, Copenhagen University Hospital, Copenhagen, Denmark; 11Department of Oncology, Herlev Hospital, Herlev, Denmark; 12Odense Patient data Explorative Network (OPEN), Odense University Hospital, Odense, Denmark; 13Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark; 14Center for Genomic Medicine, Copenhagen University Hospital, Copenhagen, Denmark; 15Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
Background: The incidence and prevalence of multiple endocrine neoplasia 2A (MEN2A) have only been reported once in a nationwide setting. However, it is unclear whether the figures are representative of other populations, as the major component of the syndrome, hereditary medullary thyroid carcinoma (MTC), has been reported as rare in the same country. We conducted a nationwide retrospective cohort study of MEN2A in Denmark from 1901 to 2014, aiming to describe the incidence and prevalence.
Methods: This study included 250 unique MEN2A patients born or resident in Denmark before December 31, 2014. Patients were identified through the Danish REarranged during Transfection (RET) cohort, linkage of MEN2A pedigrees, the Danish MTC cohort, a nationwide collaboration of MEN2 centers, cross-checking of other relevant cohorts, and a systematic literature search.
Results: The incidence from 1971 to 2000 was 28 (95% CI: 21–37) per million live births per year. Incidence for the specific mutations or for the overall MEN2A group did not change significantly from 1901 to 2014 (P>0.05). Point prevalence at January 1, 2015, was 24 per million (95% CI: 20–28).
Conclusion: The incidence and prevalence of MEN2A in Denmark seem higher than those reported in other countries. This is likely explained by the Danish C611Y founder effect. Also, our data indicate no significant change in MEN2A incidence during the last century.
Keywords: multiple endocrine neoplasia 2A, incidence, prevalence, Denmark
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