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Evolution of overweight prevalence among 5–6-year-old children according to socio-economic status

Authors

  • Hélène Thibault,

    Corresponding author
    1. INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
    • University of Bordeaux, ISPED, Centre ISERM U897-Epidemiologie-Biostatistique, Bordeaux, France
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  • Caroline Carriere,

    1. University of Bordeaux, ISPED, Centre ISERM U897-Epidemiologie-Biostatistique, Bordeaux, France
    2. INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
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  • Coralie Langevin,

    1. University of Bordeaux, ISPED, Centre ISERM U897-Epidemiologie-Biostatistique, Bordeaux, France
    2. INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
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  • Pascale Barberger-Gateau,

    1. INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
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  • Sylvie Maurice

    1. University of Bordeaux, ISPED, Centre ISERM U897-Epidemiologie-Biostatistique, Bordeaux, France
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Correspondence

Hélène Thibault, M.D., Inserm Research Center U897, ISPED, University of Bordeaux, 146, rue Leo Saignat, 33076 Bordeaux, France.

Tel: +33-557-571-517 |

Fax: +33-556-240-081 |

Email: HeleneThibault@aol.com

Abstract

Aim

To assess time trends in overweight and obesity prevalence among 5–6-year-old children of Bordeaux city (France) over seven school years from 2004–2005 to 2010–2011.

Methods

For each year, all 5–6-year-old children from 63 of the 69 schools of Bordeaux were included: 2005, 2100, 2010, 1952, 2040, 2017 and 2111 subjects, respectively. Weight and height were collected by school doctors, and weight status was defined according to the age- and sex-specific body mass index cut-off points of the International Obesity Task Force (IOTF) for obesity and to the French age- and gender-specific child cut-off (close to the IOTF cut-off) for overweight including obesity.

Results

From 2004–2005 to 2010–2011, an overall decrease was observed in overweight including obesity (from 8.9% to 5.2%, p < 0.001) and obesity prevalences (from 2.8% to 1.4%, p = 0.046). Similar results were observed in non-low socio-economic status (SES) areas (p < 0.001), whereas the prevalence did not vary significantly in low-SES areas (p > 0.05).

Conclusion

Overweight prevalence has decreased between 2004 and 2011 in 5–6-year-old children from Bordeaux. However, the gap between low and non-low-SES areas has persisted during these years.

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