Month of birth may be linked to risk of developing Crohn's disease

Month of birth may be linked to the risk of developing Crohn's disease in later childhood according to a research pointer by Sorensen and colleagues (p 907). They studied the pattern of annual cyclical variation in month of birth for people who were born in Denmark and in whom Crohn's disease was diagnosed at age 20 years or younger. They found that the highest risk was in the second half of the year, which is the opposite of what has previously been reported in Britain. The authors suggest this may be because of different causal factors, such as an infective agent.


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Relevant Article

Research pointers: Does month of birth affect risk of Crohn's disease in childhood and adolescence?
Henrik Toft Sørensen, Lars Pedersen, Bente Nørgård, Kirsten Fonager, and Kenneth J Rothman
BMJ 2001 323: 907. [Extract] [Full Text] [PDF]

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