Kae Karasawa, Ryo Tanaka, Naoki Motozawa, Akira Watanabe, Kosuke Tanabe, Naoko Yamada, Akiko Chikano, Shingo Noi
A multivariate, binomial logistic regression analysis was conducted using sex, grade, and each life situation (sleeping hours, breakfast intake, defecation, outdoor play, and time spent using electronic media) as explanatory variables, with daytime sleepiness as the objective variable.