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FIGURE 1—— Weight status at 1-year follow-up as a percentage of the sample, by gender and baseline weight status: Cambridge Public School Health Surveillance System, 1999–2003.

Note. Data were based on 11 256 measurements of 5249 children. See "Measures" section in this article for description of weight status categories. Among the children who were in the healthy weight group at baseline, 0.7% of boys and 0.3% of girls (0.5% overall) were overweight at the follow-up.