الفهرس 
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Abstract
Childhood obesity has more than tripled in the past 30 years. The prevalence of obesity among children aged 6 to 11 years increased from 6.5% in 1980 to 19.6% in 2008. The prevalence of obesity in all age groups has increased dramatically over the past 30 years, such that overweight and obesity are considered to be a major public health concern in many countries.
Body Mass Index (BMI) is generally agreed to be the most appropriate proxy measure for defining and diagnosis childhood obesity.
The causes of obesity are multifactorial, and range from purely genetic conditions, to entirely environmental conditions .it ishowever.certain that obesity can only occur when energy intake remains greater than energy expenditure for a long period of time.
Obesity is associated with physical problems, such as hypertension coronary arteriosclerosis, elevated cholesterol, type 2 diabetes,joint problems and certain types of cancers. Psychologically it is associated with several problems, such as decreased self-image, anxiety and depression, which are related to somatic and psychological symptoms. Therefore, identification and management of obesity must start during childhood and adolescence.
As recommended by American Academy of pediatrics, pediatricians should support both control and prevension of these risk factors in children via life style modification.
The aim of this work was to determine the prevalence of obesity among children of primary school in Kafr-Elsheikh Government ”Kalin District”.
This study was conducted 2500 Egyptian children; 1230 females
(49.2%) and 1270 males (50.8%). Their ages ranged from 6 to 12 years. It was conducted to determine the prevalence of obesity among children of primary school in Kafr-Elsheikh Government ”Kalin District”.
Our patients were subjected to:
A .History taking:
- Personal data (name, age, sex, residence and special habits).
- Assessment of socioeconomic standard of family with questions about the father’s education and occupation, mother’s education and occupation and family income.
B. Physical examination with special emphasis on anthropometric measurements including:
- Weight.
- Height.
- BMI.
Results of this study showed that:
Female children tend to have significant more weight, height and BMI means than male sex. Children from rural have less weight and BMI means than those in urban areas. Weight and BMI means are significantly higher in high socioeconomic level and in children of private schools.
Regarding height/age z-score, female children and those from urban areas significantly have more negative deviations from mean than other children.