Month-of-birth-effect in multiple sclerosis in Austria

Background: The month-of-birth-effect (MoBE) describes the finding that multiple sclerosis (MS) patients seem to have been born significantly more frequently in spring, with a rise in May, and significantly less often in autumn and winter with the fewest births in November. Objectives: To analyse if...

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Bibliographic Details
Published in:	Multiple sclerosis Vol. 25; no. 14; pp. 1870 - 1877
Main Authors:	Walleczek, Nina-Katharina, Frommlet, Florian, Bsteh, Gabriel, Eggers, Christian, Rauschka, Helmut, Koppi, Stefan, Assar, Hamid, Ehling, Rainer, Birkl, Christoph, Salhofer-Polanyi, Sabine, Baumgartner, Anna, Blechinger, Stephan, Buchinger, Dominic, Sellner, Johann, Kraus, Jörg, Moser, Hermann, Mayr, Markus, Guger, Michael, Rathmaier, Sandra, Raber, Bettina, Liendl, Herburg, Hiller, Maria-Sophie, Parigger, Silvia, Morgenstern, Gabriele, Kempf, Ines, Spiss, Heinrich K, Meister, Birgit, Heine, Martin, Cisar, Astrid, Bachler, Herbert, Khalil, Michael, Fuchs, Siegrid, Enzinger, Christian, Fazekas, Franz, Leutmezer, Fritz, Berger, Thomas, Kristoferitsch, Wolfgang, Aboulenein-Djamshidian, Fahmy
Format:	Journal Article
Language:	English
Published:	London, England SAGE Publications 01-12-2019 Sage Publications Ltd
Subjects:	Birth Birth rate Multiple sclerosis Austria epidemiology prevalence Correlation Austria month-of-birth-effect multiple sclerosis Europe incidence
Online Access:	Get full text
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Summary:	Background: The month-of-birth-effect (MoBE) describes the finding that multiple sclerosis (MS) patients seem to have been born significantly more frequently in spring, with a rise in May, and significantly less often in autumn and winter with the fewest births in November. Objectives: To analyse if the MoBE can also be found in the Austrian MS population, and if so, whether the pattern is similar to the reported pattern in Canada, United Kingdom, and some Scandinavian countries. Methods: The data of 7886 MS patients in Austria were compared to all live births in Austria from 1940 to 2010, that is, 7.256545 data entries of the Austrian birth registry and analysed in detail. Results: Patterns observed in our MS cohort were not different from patterns in the general population, even when stratifying for gender. However, the noticeable and partly significant ups and downs over the examined years did not follow the distinct specific pattern with highest birth rates in spring and lowest birth rates in autumn that has been described previously for countries above the 49th latitude. Conclusion: After correcting for month-of-birth patterns in the general Austrian population, there is no evidence for the previously described MoBE in Austrian MS patients.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1352-4585 1477-0970
DOI:	10.1177/1352458518810924