Journal
CIRCULATION
Volume 111, Issue 15, Pages 1897-1903Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/01.CIR.0000161797.67671.A7
Keywords
risk factors; infant formula; obesity; follow-up studies; pediatrics
Funding
- NCRR NIH HHS [K23-RR-016073] Funding Source: Medline
- NICHD NIH HHS [N01-HD-8-3279] Funding Source: Medline
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Background-Successful prevention of obesity and related cardiovascular risk factors requires a clear understanding of its determinants over the life course. Rapid infancy weight gain is associated with childhood obesity, whereas low infancy weight is associated with coronary heart disease. Our aim was to identify during which periods in infancy weight gain is associated with adult obesity. Methods and Results-A cohort of European American formula-fed subjects, measured on 7 occasions during infancy as part of several infant formula studies, were contacted at age 20 to 32 years, when they reported usual adult weight and height. A life-course plot was used to identify critical periods of weight gain associated with adulthood overweight (body mass index >= 25 kg/m(2)). These associations were tested with logistic regressions. Data were available for 653 subjects (72% of eligible subjects). Approximately 32% of them were overweight adults. The period between birth and age 8 days was identified as potentially critical. After adjustment for important confounding factors, weight gain during the first week of life was associated with adulthood overweight status (OR for each 100-g increase 1.28, 95% CI 1.08 to 1.52), as was weight gain during the first 112 days of life (OR 1.04, 95% CI 1.01 to 1.08). Similar results were obtained after standardization with z scores from a reference population. Conclusions-In formula-fed infants, weight gain during the first week of life may be a critical determinant for the development of obesity several decades later. These results contribute to the understanding of chronic disease programming and suggest new approaches to obesity prevention.
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