CHICAGO – Children born to obese women are more than twice as likely to be overweight by age 4, according to a new study that indicates prevention efforts should begin at – or even before – birth.
While obesity is known to run in families, the study appears to be the first to follow children from birth until preschool to see how early the problem develops, said the study’s author, Dr. Robert Whitaker, a pediatrician at Princeton, N.J.-based Mathematica Policy Research.
The study of nearly 8,500 women found that by 4 years of age, 24 percent of children were obese if their mothers had been obese during the first trimester of pregnancy, compared with 9 percent of children whose mothers had been of normal weight.
After the researchers took into account such factors as birth weight and the mothers’ race, education level, and smoking during pregnancy, children with obese mothers were found to be twice as likely to be obese at age 2 and 2.3 times as likely at age 4.
The research did not seek to determine why the risk of obesity increased when the mother was overweight. Whitaker said likely factors include genetics, eating habits and physical activity levels at home.
The study was funded by the U.S. Department of Agriculture and appears in the July issue of Pediatrics. It collected data on poor women and children enrolled in an Ohio welfare program.
Other studies have shown that overweight children are likely to grow up to be fat adults.
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