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Prevalence and trends in overweight and obesity among children and adolescents in Denmark

Department of Nutrition, National Food Institute, Technical University of Denmark, Søborg, Denmark, jem{at}food.dtu.dk

Margit Velsing Groth

Department of Nutrition, National Food Institute, Technical University of Denmark, Søborg, Denmark

Sisse Fagt

Department of Nutrition, National Food Institute, Technical University of Denmark, Søborg, Denmark

Anja Biltoft-Jensen

Department of Nutrition, National Food Institute, Technical University of Denmark, Søborg, Denmark

Anders Stockmarr

Department of Veterinary Diagnostics and Research, Section for Epidemiology, National Food Institute, Technical University of Denmark, Søborg, Denmark

Jens Strodl Andersen

Department of Microbiology and Risk Assessment, Danish Zoonosis Centre, National Food Institute, Technical University of Denmark, Søborg, Denmark

Ellen Trolle

Department of Nutrition, National Food Institute, Technical University of Denmark, Søborg, Denmark

Aim: To study the current prevalence and trends in overweight and obesity among children and adolescents in Denmark from 1995 to 2000—2002. Methods: Cross-sectional national dietary surveys were conducted in 1995 and 2000—2002. The analysis was based on two random population samples from the Danish civil registration system. Body mass index (BMI) was calculated from self-reported height and weight for 1,026 and 1,152 children and adolescents (4—18 years), who participated in 1995 and 2000—2002, respectively. The prevalence of overweight and obesity was defined according to the international age and gender-specific child BMI cut-off points. In the statistical analysis, overweight and obesity were included in the prevalence of overweight. Results: Mean BMI increased significantly between 1995 and 2000—2002 for all combinations of age groups (4—6, 7—10, 11—14 and 15—18 years) and genders. Prevalence of overweight increased between survey years for boys and girls for all age groups (4—6, 7—10, 11—14 and 15—18 years), although formal statistical significance was not reached (p>0.05). When all children and adolescents (4—18 years) were analysed, the prevalence of overweight rose significantly from 10.9% (95% confidence interval (CI) 9.0—12.8) to 14.4% (95% CI 12.5—16.3) between 1995 and 2000— 2002 (p=0.01), whereas the increase in the prevalence of obesity did not reach significance (1995, 2.3% (95% CI 1.3—3.3) vs. 2000—2002, 2.4% (95% CI 1.6—3.3); p=0.74). Conclusions: The present study revealed a significant increase from 1995 to 2000—2002 in mean BMI for boys and girls for all age groups and a significant increase in the prevalence of overweight when all Danish children and adolescents (4—18 years) were analysed.

Key Words: Body mass index • children • Denmark • obesity • trend

Scandinavian Journal of Public Health, Vol. 36, No. 2, 153-160 (2008)
DOI: 10.1177/1403494807085185


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