イシカワ　モトナオ   ISHIKAWA MOTONAO   石川　元直    所属   医学部 医学科（附属足立医療センター）    職種   非常勤講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Sleep quality among elderly high-altitude dwellers in Ladakh.
掲載誌名	正式名：Psychiatry research 略　 称：Psychiatry Res ISSNコード：(1872-7123)0165-1781(Linking)
掲載区分	国外
巻・号・頁	249,pp.51-57
著者・共著者	Sakamoto Ryota†*, Okumiya Kiyohito, Norboo Tsering, Tsering Norboo, Yamaguchi Takayoshi, Nose Mitsuhiro, Takeda Shinya, Tsukihara Toshihiro, Ishikawa Motonao, Nakajima Shun, Wada Taizo, Fujisawa Michiko, Imai Hissei, Ishimoto Yasuko, Kimura Yumi, Fukutomi Eriko, Chen Wenling, Otsuka Kuniaki, Matsubayashi Kozo
発行年月	2017/03
概要	It has been already known that people who temporarily stay at high altitude may develop insomnia as a symptom of acute mountain sickness. However, much less is known about people living at high altitude. The aim of this study was to determine the effect of high altitude environment on sleep quality for the elderly who have been living at high altitude for their whole lives. A cross-sectional study was conducted in Domkhar valley at altitudes of 2800-4200m, Ladakh. Sleep quality was assessed using Insomnia Severity Index (ISI). Measurement items include body mass index, blood pressure, blood sugar, hemoglobin, timed Up and Go test, oxygen saturation during wakefulness, respiratory function test, Oxford Knee Score (OKS), and Geriatric Depression Scale (GDS), and so on. The participants were Ladakhi older adults aged 60 years or over (n=112) in Domkhar valley. The participation rate was 65.1% (male: female=47:65, mean age: 71.3 years and 67.9 years, respectively). The prevalence of the high score of ISI (8 or more) was 15.2% (17 out of 112). Altitude of residence was significantly correlated with ISI. Stepwise multiple regression analysis showed that OKS and altitude of residence were significantly related with ISI.
DOI	10.1016/j.psychres.2016.12.043
PMID	28063399