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Multicenter Study
. 2006 May 13;332(7550):1130-5.
doi: 10.1136/bmj.38807.594792.AE. Epub 2006 May 5.

Development of adiposity in adolescence: five year longitudinal study of an ethnically and socioeconomically diverse sample of young people in Britain

Jane Wardle  1 , Naomi Henning Brodersen, Tim J Cole, Martin J Jarvis, David R Boniface
Affiliations
Multicenter Study

Development of adiposity in adolescence: five year longitudinal study of an ethnically and socioeconomically diverse sample of young people in Britain

Jane Wardle et al. BMJ. .

Abstract

Objective: To examine the developmental trajectory of obesity in adolescence in relation to sex, ethnicity, and socioeconomic status.

Design: Five year longitudinal cohort study of a socioeconomically and ethnically diverse sample of school students aged 11-12 years at baseline.

Setting: 36 London schools recruited to the study in 1999 by a stratified random sampling procedure.

Participants: 5863 students participated in one or more years.

Main outcome measures: Weight, height, and waist circumference measured annually by trained researchers; overweight and obesity defined according to International Obesity Task Force criteria; adiposity and central adiposity indexed by body mass index (BMI) and waist standard deviation scores relative to 1990 British reference values.

Results: In school year 7 (age 11-12), the prevalence of overweight and obesity combined was almost 25%, with higher rates in girls (29%) and students from lower socioeconomic backgrounds (31%) and the highest rates in black girls (38%). Prevalence of obesity increased over the five years of the study at the expense of overweight, but no reduction occurred in the proportion of students with BMIs in the healthy range. Waist circumferences were high compared with 1990 norms at age 11 (by 0.79 SD in boys and by 1.15 SD in girls) and increased further over time. Both BMI and waist circumference tracked strongly over the five years.

Conclusions: Prevalence of overweight and obesity was high in London school students, with significant socioeconomic and ethnic inequalities. Little evidence was found of new cases of overweight or obesity emerging over adolescence, but few obese or overweight adolescents reduced to a healthy weight. The results indicate that persistent obesity is established before age 11 and highlight the need to target efforts to prevent obesity in the early years.

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Figures

Fig 1
Fig 1
Rate of overweight by ethnicity (“other” ethnicity category excluded) for each year adjusted for socioeconomic status
Fig 2
Fig 2
Rate of overweight by socioeconomic status for each year adjusted for ethnicity (“other” ethnicity category excluded)
See this image and copyright information in PMC

References

    1. Lobstein TJ, James WPT, Cole TJ. Increasing levels of excess weight among children in England. Int J Obes 2003;27: 1136-8. - PubMed
    1. Bundred P, Kitchiner D, Buchan I. Prevalence of overweight and obese children between 1989 and 1998: population based series of cross sectional studies. BMJ 2001;322: 326-8. - PMC - PubMed
    1. Ogden CL, Flegal KM, Carroll MD, Johnson CL. Prevalence and trends in overweight among US children and adolescents, 1999-2000. JAMA 2002;288: 1728-32. - PubMed
    1. Dietz WH. Overweight in childhood and adolescence. N Engl J Med 2004;350: 855-7. - PubMed
    1. Guo SS, Chumlea WC. Tracking of body mass index in children in relation to overweight in adulthood. Am J Clin Nutr 1999;70: 145-8S. - PubMed

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