First reference curves of waist circumference for German children in comparison to international values: the PEP Family
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First reference curves of waist circumference for German children in comparison to international values: the PEP Family Heart Study Peter Schwandt, Roya Kelishadi, Gerda-Maria Haas Munich, Germany
Methods: A representative sample of 3531 German children (1788 boys, 1743 girls) aged 3-11 years participating in the Prevention Education Program (PEP) Family Heart Study was studied. WC was measured according to the recommendations of the World Health Organization, then age- and sex-specific WC reference curves were constructed and smoothed using the LMS method and SPSS 14.0 for statistical analysis. Results: WC increased with age in both boys and girls. Boys had higher values of WC than girls at every age and percentile level. 4.1% of the boys and 2.8% of the girls had WC values >97th percentile as compared to 6.3% of the boys and 4.9% of the girls with >97th percentile of BMI (severe obesity). 3.1% of the boys and 2% of the girls had both risk factors. Because 85.3% of the boys and 87.3% of the girls with WC97th percentile; 3: BMI90 percentile; 4: BMI>90 and WC
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