1 Universidade Federal Fluminense, Brazil; 2 Universidade do Estado do Rio de Janeiro, Brazil; 3 Universidade Federal do Rio de Janeiro, Brazil
Background: Screen time, marker of sedentary habits, known as time expended watching TV, using computer and/or videogame, is considered risk factors for children and adolescents’ health. These activities are associated with inadequate food consumption, contributing to overweight in this population. Objective: To verify association between screen time and frequency of markers food consumption of diet. Methods: Data are from the baseline of a randomized community trial conducted among 6th and 7th graders of 2 public schools in the city of Niterói, RJ, Brazil, in 2014. Information about screen time and food consumption was collected with a self-reported questionnaire. Screen time was considered the amount of time spent watching TV, using computer and/or videogame (hours/day). Frequency of dietary consumption was assessed by two healthy markers food (fruits and beans) and two unhealthy ones (soft drinks and fast food). Statistical analyses was performed by SAS (v.9.3). Results: Of 417 students evaluated, 53.9% were male. The mean age was 12 years old. The categories of screen time included ≤ 2 hours/day (7.7%), 3 a 4 hours/day (23.5%) e ≥ 5 hours/day (68.8%). The odds (OR) of adolescents with screen time ≥5 hours/day being in higher frequency categories of soft drinks is 2.6 times the odds of adolescents with screen time ≤2 hours/day (p=0.0035). Fastfood (OR=1.5) and beans (OR=1.8) are also consumed with high frequency in the category of ≥5 hours/day (p≥0.05). On the other hand, the frequency of consumption of fruits (OR=0.8) was higher in adolescents with screen time ≤ 2 hours/day (p≥0.05). Conclusion: Higher screen time was associated with higher consumption of soft drinks, important unhealthy marker food, in adolescents. Thus, screen time above the recommendation should be discouraged, in order that the excessive food consumption should be avoided. Thereby, it is possible to revent the excessive weight gain.