@phdthesis{oai:ir.kagoshima-u.ac.jp:00016554,
 author = {益満, 智美 and Masumitsu, Tomomi},
 month = {2023-03-15, 2023-03-15, 2023-04-20, 2023-04-20},
 note = {博士論文全文, 博士論文要旨, 最終試験結果の要旨, 論文審査の要旨, Aim: This study aims to investigate the association of the Cardio-Ankle Vascular Index (CAVI) with self-reported sleep duration and sleep quality in community-dwelling older adults aged ≥ 65 years.
Methods: The Tarumizu Study was a cohort of community-based health checkups conducted in the Tarumizu City, Japan, in 2018 and 2019. In total, 997 participants aged ≥ 65 years (median age, 74 years) were examined. We obtained the average sleep duration and sleep quality using self-reported questionnaires and classified them into three separate groups according to sleep duration (＜6 h, 6–8 h, and ≥ 8 h) and sleep quality (good, medium, and poor). The arterial stiffness was measured using the CAVI.
Results: As per our findings, the CAVI was significantly higher in the ≥ 8 h sleep group (CAVI=9.6±1.3) than in the ＜6 h (CAVI=9.1±1.1) or 6–8 h (CAVI=9.1±1.2) groups (p＜0.001). After adjustment for age, sex, systolic blood pressure, current smoking status, body mass index, frequency of exercise, educational background, frailty, sleep medication, sleep quality, and nap duration, multivariable regression analysis demonstrated that the CAVI was significantly higher in the ≥ 8 h group than in the 6–8 h group (p=0.016). In contrast, multivariable regression analysis showed that there was no significant association between sleep quality and CAVI.
Conclusions: A significant association was noted between long sleep duration (≥ 8 h) and elevated CAVI in community-dwelling older adults aged ≥ 65 years. We, therefore, suggest that long sleep duration, not sleep quality, is correlated with arterial stiffness in older adults.

Tomomi Masumitsu, Takuro Kubozono, Masaaki Miyata, Hyuma Makizako, Takayuki Tabira, Toshihiro Takenaka, Shin Kawasoe, Akihiro Tokushige, Sayoko Niwa, Mitsuru Ohishi
Association of Sleep Duration and Cardio-Ankle Vascular Index in Community-Dwelling Older Adults
Journal of Atherosclerosis and Thrombosis, 2022; 29: 1864-1871
http://doi.org/10.5551/jat.63594},
 school = {鹿児島大学},
 title = {Association of Sleep Duration and Cardio-Ankle Vascular Index in Community-Dwelling Older Adults},
 year = {},
 yomi = {マスミツ, トモミ}
}