Naoki Motozawa, Ryo Tanaka, Kae Karasawa, Akira Watanabe, Kosuke Tanabe, Naoko Yamada, Akiko Shikano, Shingo Noi
A multivariate binomial logistic regression analysis was conducted using sex, grade, and lifestyle status (sleeping time, exercise time, sitting time, TV time, smartphone time, reading time, and presence of lessons) as explanatory variables, with the number of absent days (10 or fewer days per year = 0, 11 or more days per year = 1) as the objective variable. The results showed that 751 (6.0%) were absent 11 or more days per year, and the life factors that showed significant regression coefficients with the number of days absent were grade, sleep time, and reading time.