Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA.
Department of Cognitive and Behavioral Science & Neuroscience Program, Washington and Lee University, Lexington, VA, USA.
Sleep Health. 2020 Dec;6(6):790-796. doi: 10.1016/j.sleh.2020.04.014. Epub 2020 Jul 15.
The association between sleep and adiposity (indexed by body mass index or waist-to-hip ratio) has typically been evaluated using a single dimension of self-reported sleep. However, other dimensions and behavioral measures of sleep may also be associated with adiposity. This study evaluated whether multidimensional sleep health calculated from actigraphy and self-report was longitudinally associated with adiposity in a sample of midlife women who have a high prevalence of sleep disturbances and adiposity.
Longitudinal study with 11-14 years of follow-up time between the sleep health assessment and body mass index / waist-to-hip ratio measurements.
Two hundred and twenty-one midlife women enrolled in the Study of Women's Health Across the Nation Sleep Study.
Multidimensional sleep health was quantified using actigraphy (M[SD] = 29.1[7.2] nights) measures of sleep efficiency, midpoint, duration, regularity, and self-report measures of alertness and satisfaction. Each component was dichotomized and summed; higher values indicated better sleep health. Height, body weight, and waist and hip circumference were measured at the sleep study and at follow-up. Linear regression models were used to assess associations between sleep health and adiposity, adjusting for demographic and menopausal covariates.
There was no substantial within-person change in adiposity over time. Better sleep health was cross-sectionally and longitudinally associated with lower adiposity in unadjusted, but not in adjusted, models. Individual sleep health components were not associated with adiposity after adjustment.
We did not observe cross-sectional or longitudinal associations between multidimensional sleep health and adiposity. The sleep-adiposity link may be weaker in midlife adults than in other age groups.
通常使用自我报告睡眠的单一维度来评估睡眠与肥胖（以体重指数或腰臀比为指标）之间的关联。然而，其他维度和行为测量的睡眠也可能与肥胖有关。本研究评估了从中度活跃女性样本中计算出的多维睡眠健康（通过活动记录仪和自我报告评估）是否与肥胖存在纵向关联，这些女性的睡眠障碍和肥胖发生率较高。
纵向研究，在睡眠健康评估和体重指数/腰臀比测量之间有 11-14 年的随访时间。
221 名参加妇女健康全国睡眠研究的中年女性。
使用活动记录仪（M[SD]=29.1[7.2]晚）测量睡眠效率、中点、持续时间、规律性以及警觉性和满意度的自我报告测量来量化多维睡眠健康。每个组成部分都被分为两部分并相加；更高的值表示更好的睡眠健康。在睡眠研究和随访时测量身高、体重、腰围和臀围。使用线性回归模型评估睡眠健康与肥胖之间的关联，调整人口统计学和绝经协变量。
在整个研究期间，肥胖没有实质性的个体内变化。在未调整的模型中，更好的睡眠健康与肥胖呈横断面和纵向关联，但在调整后的模型中则没有。调整后，个别睡眠健康成分与肥胖无关。
我们没有观察到多维睡眠健康与肥胖之间存在横断面或纵向关联。在中年成年人中，睡眠与肥胖的联系可能比其他年龄组弱。
