The relationship between body mass index (BMI) in adolescence and subsequent health in adulthood is well established, and both overly low and overly high BMI values are of concern. ConclusionĬontrary to previous knowledge, we found that the increase in OWOB presented a uniform shift in the entire BMI distribution for 15–16-year-old Norwegian girls and was not due to a larger shift in a specific subpopulation in the upper percentiles. The BMI density plots revealed similar shapes at both time points for both sexes, but the distribution for girls shifted to the right from 2002 to 2017. The prevalence of OWOB increased from 9 to 14% among girls (difference 5, 95% CI: 2, 8) and from 17 to 20% among boys (difference 3, 95% CI: − 1, 6%). The mean BMI increased from 20.7 to 21.4 ( p < 0.001) for girls but remained unchanged at 21.5 vs 21.4 ( p = 0.80) for boys. We calculated their BMI, BMI z-scores (BMIz), and the prevalence of OWOB. MethodsĪ cross-sectional study involving 15- to 16-year-old adolescents in Oppland, Norway, was undertaken in 20. This study aimed to describe the distributions of BMI and the point prevalence of OWOB in Norwegian adolescents in 20. The prevalence of overweight and obesity (OWOB) has stabilized in some countries, but a portion of children with high body mass index (BMI) may have become heavier.
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