Ten-year secular trend of overweight and obesity in school children in south-eastern Poland
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Medical Faculty, University of Rzeszow, Poland
Institute of Statistics, Department of Instrumental Analysis, Faculty of Pharmacy, Medical University of Silesia, Katowice, Poland
Medical College of Wisconsin, Milwaukee, USA
Department of Clinical Endoscopy, Institute of Rural Health, Lublin, Poland
Department of Paediatrics, Paediatric Endocrinology and Diabetes, Medical University of Silesia, Katowice, Poland
Ann Agric Environ Med 2014;21(3):634–638
Objective. To examine the trend in prevalence of overweight and obesity in schoolchildren from south-eastern Poland over a 10-year period. Materials and Method. A cross-sectional study was conducted in randomly selected primary schools. In total, 4,248 children (2,182 boys and 2,066 girls), mean age 10.5±2.4 years, were examined in 1998, and 2,412 children (1,184 boys and 1,228 girls), mean age 10.5±2.3 years in 2008. In each school the entire population was studied. Results. In 2008, the prevalence of overweight in girls was 13.3% and obesity 7.7%, compared to 12.0% and 10.1% in 1998. The decrease in obesity prevalence was statistically significant. In boys, the prevalence of overweight in 2008 was 14.2% and obesity 6.4%, compared to 10.5% and 6.8% in 1998. The increase in overweight prevalence among boys was statistically significant. Conclusions. A trend toward stabilization of the prevalence of overweight and obesity was noted in school children from south-eastern Poland between 1998–2008. The declining prevalence of obesity in girls and increased prevalence of overweight in boys demonstrates that in this age group of children the secular trend is gender dependent.