Information on past history, eating habits, physical activities of the child and history, knowledge of parents was collected by structured questionaire from independent assessment of his / her parents and teacher. Result: Breast feeding is a protective factor (OR=0.24, p=0.004), children with overeating is in risk of overweight from 10.4 to 13.8 times (OR= 10.4 - 13.8, p< 0.001), active personality is a protective factor (OR=0.03, p=0.011) and children of each higher level of father's education is double in risk of overweight (OR=2.07, p=0.022).