Predictive factors of consumption of fast food in Yazd city high school girls based on the theory of planned behavior

Low physical activity and poor diet among teenagers is increasing. These unhealthy behaviors are related to increases in overweight in adolescence with type II diabetes, hypertension, and heart disease. Frequent consumption of fast food with high energy consumption is associated with low intake of saturated fat, sodium, and low intake of nutrients. The aim of this study was to determine the predictive factors of consumption of fast food in female high school students of Yazd city based on the theory of planned behavior. This was a descriptive and analytic study that was done on 186 female students in Yazd city of Iran in 2014. The variables under study were demographic variables behavior of fast food consumption and structures of theory of planned behavior, including attitudes, subjective norms, perceived behavioral control and also variables of intention and. Data collected was analyzed using SPSS 16 using descriptive and analytical statistics. Fast food consumption of students was influenced by children’s parents. Results of the present study showed that structures of attitudes, subjective norms and perceived behavioral control predicted 20.1% of variance intention All variables of theory predicted 15.8% of the variance of behavior of eating of fast food. The findings of this study show that the theory of planned behavior is useful for predicting the intention of fast food consumption.