@article{oai:air.repo.nii.ac.jp:00005835,
 author = {Asaka, Yoko and Mitani, Yusuke and Ohta, Hidenobu and Nakazawa, Takayo and Fukutomi, Rika and Kobayashi, Kyoko and Kumagai, Mayuko and Shinohara, Hitomi and Yoshida, Michiko and Ando, Akiko and Yoshimura, Yuko and Nakagawa, Machiko and Oishi, Yoshihisa and Mizushima, Masato and Adachi, Hiroyuki and Kaneshi, Yosuke and Morioka, Keita and Seto, Yoshitaka and Shimabukuro, Rinshu and Hirata, Michio and Ikeda, Takashi and Ozawa, Miwa and Takeshima, Masahiro and Manabe, Atsushi and Takahashi, Tsutomu and Mishima, Kazuo and Kikuchi, itsuru and Yoda, Hitoshi and Kusakawa, Isao and Cho, Kazutoshi},
 issue = {1},
 journal = {Scientific Reports},
 month = {Dec},
 note = {A number of studies have been made on the sleep characteristics of children born preterm in an attempt to develop methods to address the sleep problems commonly observed among such children. However, the reported sleep characteristics from these studies vary depending on the observation methods used, i.e., actigraphy, polysomnography and questionnaire. In the current study, to obtain reliable data on the sleep characteristics of preterm-born children, we investigated the difference in sleep properties between 97 preterm and 97 term toddlers of approximately 1.5 years of age using actigraphy. Actigraphy units were attached to the toddlers’ waists with an adjustable elastic belt for 7 consecutive days, and a child sleep diary was completed by their parents. In the study, we found that preterm toddlers had more nocturnal awakenings and more daytime activity, suggesting that preterm-born children may have a different process of sleep development in their early development.},
 title = {Preterm toddlers have low nighttime sleep quality and high daytime activity.},
 volume = {12},
 year = {2022}
}