Winter Birth in Association with a Risk of Brain Tumor among a Finnish Patient Population

The aim of this study was to analyze whether winter birth is related to risk of brain tumor in a clinical sample of patients from northern Finland. The study group comprised 101 patients suffering from a primary brain tumor. When comparing births in winter to births in other seasons, a 1.39-fold (95...

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Bibliographic Details
Published in:Neuroepidemiology
Main Authors: Mainio, Arja, Hakko, Helinä, Koivukangas, John, Niemelä, Asko, Räsänen, Pirkko
Format: Article in Journal/Newspaper
Language:English
Published: S. Karger AG 2006
Subjects:
Northern Finland
Online Access:http://dx.doi.org/10.1159/000094578
https://www.karger.com/Article/Pdf/94578
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Summary:The aim of this study was to analyze whether winter birth is related to risk of brain tumor in a clinical sample of patients from northern Finland. The study group comprised 101 patients suffering from a primary brain tumor. When comparing births in winter to births in other seasons, a 1.39-fold (95% CI 1.01–1.77) excess of winter births among patients was observed compared to respective births in the general population (p = 0.026). Especially patients with pituitary adenomas exhibited a 2.5-fold (95% CI 1.5–4.4) excess of winter births. The authors conclude that the season-of-birth effect in brain tumor patients should not be neglected when the actual and important tumorigenesis is investigated.

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