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| Basic information |
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| Name |
Kambayashi Yasuhiro |
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| researchmap researcher code |
5000036919 |
| researchmap agency |
Okayama University of Science |
Longitudinal relationship between screen-based sedentary behavior and nutrient intake in Japanese children: an observational epidemiological cohort study
Hiromasa Tsujiguchi 1 2 3 , Yuriko Sakamoto 1 , Akinori Hara 1 2 3 , Keita Suzuki 1 , Sakae Miyagi 4 , Masaharu Nakamura 1 , Chie Takazawa 1 , Kim Oanh Pham 5 , Thao Thi Thu Nguyen 6 , Yasuhiro Kambayashi 7 , Yukari Shimizu 8 , Hirohito Tsuboi 1 9 , Yasuki Ono 1 10 , Toshio Hamagishi 11 , Aki Shibata 1 , Koichi Hayashi 1 12 , Tadashi Konoshita 13 , Hiroyuki Nakamura 1 2 3
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Background: Concerns regarding the impact of screen-based sedentary behavior on health have been increasing. Therefore, the present study investigated the longitudinal relationship between multiple screen time and nutrient intake in children and adolescents.
Methods: The present study was conducted utilizing 3 years longitudinal data. Study subjects were 740 Japanese children aged between 6 and 12 years at baseline and between 9 and 15 years in the follow-up. Screen-based sedentary behavior was assessed using screen time, including television (TV) viewing, personal computer (PC) use, and mobile phone (MP) use. The main outcomes were the intakes of nutrients. Mixed effect multivariate linear regression analyses were used to examine the longitudinal relationship between screen-based sedentary time and nutrient intake. Covariates included in the multivariable analysis consisted of sex, age, solitary eating, skipping breakfast, staying up late, and body weight status, as confounders, and physical inactivity, as mediator.
Results: In boys, a longer total screen time longitudinally correlated with higher intake of energy and lower intakes of protein, dietary fiber, minerals, and vitamins. In girls, longer total screen time longitudinally associated with higher intake of sucrose and lower intakes of protein, minerals, and vitamins. In boys, a longer TV viewing time was associated with higher intake of sucrose and lower intakes of protein, minerals, and vitamins. In girls, a longer TV viewing time was associated with higher intake of carbohydrates and lower intakes of protein, fat, minerals, and vitamins. In boys, relationships were observed between a longer PC use time and higher intakes of energy as well as lower intakes of protein, minerals, and vitamins. Relationship was observed between longer PC use time and lower intakes of minerals in girls. An increased MP use time was associated with higher intakes of energy, and lower intakes of protein, sucrose, dietary fiber, minerals, and vitamins in boys. A longer MP use time was associated with higher intakes of fat, and salt as well as lower intakes of carbohydrates, protein, minerals, and vitamins in girls.
Conclusions: The present results revealed that longer screen-based sedentary behaviors were longitudinally associated with nutrient intake in children and adolescents. Future study is needed to elucidate these relationships.
Keywords: Children; Longitudinal; Mobile phone; Nutrients; Personal computer; Screen; Television.
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