Baby boys weighing 2000-2750g at birth were found to be 60 per cent more likely to have a stroke than those weighing 3251-3750g. In girls, those in the lowest birth weight category had a 34 per cent increased risk of stroke.
The findings, presented at the European Stroke Conference in Nice last week, come from an analysis of the Copenhagen School Health Records Centre.
This included 97,391 boys and 93,772 girls born between 1936 and 1976. Birth weight was compared with stroke events recorded in the Danish Hospital and Cause of Death Registers.
Cox regression showed the relative risk was highest in those with the lowest birth weight.
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