The study of obesity associated with TV viewing in school beginner students of different zones of Tehran, 2012

Obesity is a chronic disease and the most common disorder of fat metabolism. Obesity in children and the trend in recent decades has become a concern. Today's TV has a big part in the lives of children around the world. Children often do not move and exercise while watching TV. This study aimed at the examinating the relationship between obesity and television watching hours in primary school children (both girls and boys. In this cross - sectional, watching TV and BMI of 552 elementary school students in 8 districts from 22 Districts of Tehran (random sampling were measured. Student’s BMI were calculated based on WHO BMI chart. The data were processed by software spss/ver16. Among the 500 samples, 5. 7% of girls underweight, 67. 2% normal weight, 14. 6% overweight and 12. 5% obese. Among boys, 4. 3% underweight, 59. 6% normal weight, 12. 2% overweight and 23. 9% obese. There was a pnificant relationship between BMI and watching TV hours(p=0. 002، Pnificant relationship between hours of television viewing by parents and students(p= 000, also Between economic status and hours of television watching by children. the relations between Hours of television viewing and gender, family, and physical activity was not statistically pnificant Because the relationship between BMI and time of television viewing by students and also the relationship of parents watching hours of television with watching hours of children are pnificant. In this subject, increasing family awareness may reduce the obesity and its complications.