Prevalence and socioeconomic inequality in screen time, phone, and tablet use in children in Iran

Background: Nowadays, children spend a lot of time during the day in front of the television(TV) and using their phones. We aimed to evaluate screen time and phone use in Iranian children and their relation to the socioeconomic status of children's families.Methods: This descriptive analytical study was done on 10-12-year-old children from Kurdistan, Fars, and Markazi provinces. Cluster sampling was used for sampling. Date collection included completing demographic questionnaires, calculating BMI of children and phone & tablet use, screen time, and socioeconomic status. We used linear and logistics regression to estimate the final model and decomposition method of the Oaxaca. The concentration index and the concentration curve were used to measure and illustrate socioeconomic inequalities. All analysis was conducted with the Stata / SE 14.0 software.Results: 1590 children (52.58% boys) were enrolled in our study, 594 (74%) of boys and 420 (56%) of girls had daily Screen Time activities for more than two hours, and 388 (48.20%) of boys and 211 (28.20%) of girls use mobile phones and tablets for more than two hours a day. Screen Time activities were significantly higher in boys, older children, higher BMIs, more educated mothers, and 35<year-old fathers (P_VALUE Conclusion: The screen time activities and phone & tablet use are higher in children with high socioeconomic status. Also, many other factors like gender, age, BMI, parent's education, and age can affect screen time activities and phone & tablet use in children. It is recommended to measure the effectiveness of the changeable factors by modifying and controlling these factors in future studies.