Television viewing and variations in energy intake in adults and children in the USA
2012
Sisson, Susan B | Broyles, Stephanie T | Robledo, Candace | Boeckman, Lindsay | Leyva, Misti
ObjectiveExamine the association between energy intake and television (TV) viewing in Americans.DesignNationally representative, cross-sectional study of 2003–2006 National Health and Nutrition Examination Survey.SettingTotal energy intake was determined by two 24 h recalls. TV viewing was reported as low (≤1 h/d), middle (2–3 h/d), and high (≥4 h/d). Multivariate linear regression models were used to analyse TV viewing and energy intake, adjusted for BMI (percentile for children 2–18 years), age, ethnicity and physical activity.SubjectsPre-school children (2–5 years; n 1369), school-age children (6–11 years; n 1759), adolescents (12–18 years; n 3233) and adults (≥19 years; n 7850) in the USA.ResultsThere was a significant association between TV viewing and energy intake for adolescent girls (high v. low: β = 195·2, P = 0·03) and men (high v. low: β = −113·0, P = 0·02; middle v. low: β = −131·1, P = 0·0002). Mean adjusted energy intake for adolescent girls was 7801·0, 8088·5 and 8618·2 kJ/d for low, middle and high TV viewing, respectively. Mean adjusted energy intake for men was 9845·9, 9297·2 and 9372·8 kJ/d for low, middle and high TV viewing.ConclusionsTV viewing was associated with energy intake in US children and adults only in 12–18-year-old girls and men. For girls, the high TV viewing category consumed more energy daily (816·3 kJ (195 kcal)) than the low category. In men, the middle and high TV viewing categories consumed less energy daily (548·4 kJ (131 kcal) and 473·0 kJ (113 kcal), respectively) than the low category. Our findings support some, but not all previous research. Future research is needed to explore this complicated relationship with rigorous measures of energy intake and TV viewing.
显示更多 [+] 显示较少 [-]