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2003 JUN 5 - (NewsRx.com & NewsRx.net) -- The season in which a baby is born may influence the baby's birth weight as well as how quickly the baby gains weight during the first 4 months of life.
A study published in the May issue of the Journal of Nutrition found significant differences among U.S. ethnic groups, with lower birth weights and lower rates of weight gain for black infants born in autumn, compared to other seasons.
"To our knowledge, this is the first description of seasonal variation in infant weight gain in a western society. Previous studies have focused on birth weight or on infant growth in low-income countries where food intake is directly linked to agriculture and the seasons," said Nicolas Stettler, MD, a pediatric nutrition specialist at The Children's Hospital of Philadelphia, and a coauthor of this study. This research could be important because patterns of weight gain in early infancy may predict obesity, diabetes, and other cardiovascular health problems in adolescence and adulthood.
Previous research by Stettler showed that rapid early infancy weight gain - even an extra 100 grams per month, a modest increase over the normal growth weight gain pattern - increased the risk of being overweight at age 7 by more than 25%. "We continue to try to understand the effects of birth weight and postnatal weight gain on long-term health," said Stettler.
Researchers from The Children's Hospital of ...