Journal
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
Volume 38, Issue 4, Pages 955-962Publisher
OXFORD UNIV PRESS
DOI: 10.1093/ije/dyp169
Keywords
Birth size; head circumference; coronary heart disease; mortality
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Funding
- Liaison Committee between the Central Norway Regional Health Authority
- Norwegian University of Science and Technology
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Methods Population-based cohort study of 35846 men and women born between 1920 and 1959 with mortality follow-up from 1961 to 2005. Results During follow-up, 630 people died from CHD and there was an inverse association of head circumference with deaths from CHD (P(trend)0.010). The association was modified by maternal height (P(interaction)0.01) and by adult body mass (P(interaction)0.05). People in the lowest third of head circumference, who had a tall mother or a high body mass index in adulthood, were at the highest risk of death from CHD. Conclusions Head circumference at birth was inversely associated with deaths from CHD, and the combination of small head and tall mother, or small head and high adult body mass, was associated with the highest risk. These findings suggest that combined effects of genetic factors (growth potential and intrauterine growth) and non-genetic factors acting throughout the life course (intrauterine growth restriction and later weight gain) could mediate the effects of birth size on adult heart disease.
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