"We have known that kids who are overweight or obese have a higher risk for being overweight or obese as adults. But in this paper, we show that even children in the high normal weight range have an elevated risk of becoming overweight or obese as adults," said lead author Alison Field, assistant professor of pediatrics at HMS and Children's Hospital Boston.
According to the Centers for Disease Control and Prevention's national reference data, children with a BMI between the national 85th and 95th percentiles for age and gender are classified as at risk for being overweight, and those with a BMI greater than the 95th percentile are classified as overweight. The authors considered a body mass index (BMI) between the 50th and 84th percentile to be in the high normal weight range.
The study comprised 314 children, mostly Caucasian, from East Boston, MA, who were 8 to 15 years old when their weight, height, and blood pressure were first recorded. They were again evaluated 8 to 12 years later. Results showed that nearly half of the male subjects (48.3 percent) and nearly a quarter of the female subjects (23.5 percent) became overweight or obese between their first childhood visit and the young adult follow-up. Compared with children with a BMI less than the 50th percentile, girls and boys between the 50th and 74th percentile were five times more likely to become overweight. Boys and girls with a BMI between the 75th and 84th percentile were up to 20 times more likely to become overweight as yo