Seasonal variation in the frequency of anencephalus and spina bifida births in the United Kingdom.
Open Access
- 1 June 1984
- journal article
- Published by BMJ in Journal of Epidemiology and Community Health
- Vol. 38 (2), 99-102
- https://doi.org/10.1136/jech.38.2.99
Abstract
There have been statistically significant seasonal variations of annencephalus and spina bifida in each country of the United Kingdom during 1964-79 with the exception of anencephalus births in Northern Ireland. The seasonal peaks, where discernible, are in phase. Embryos appear to develop anencephalus most commonly in May-June and spina bifida in July.Keywords
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