0002 Associations Between Sleep and Rest-Activity Rhythms with Diet Quality in the Multi-Ethnic Study of Atherosclerosis

Kaitlin Potts,Chris Ho Ching Yeung,Danielle Wallace,Sina Kianersi,Alexis Wood,Hassan Dashti,Qian Xiao,Tianyi Huang,Susan Redline,Heming Wang

Sleep（2024）SCI 2区

Brigham & Womens Hosp | Univ Texas Hlth Sci Ctr Houston | Baylor Coll Med | Harvard Med Sch

Cited 0|Views36

Abstract

Abstract Introduction Diet, sleep, and rest-activity rhythms (RAR) influence cardiometabolic health but the relationship among these behaviors is less clear. Evidence of associations between sleep and diet have focused on self-reported sleep duration and quality, and have rarely investigated sleep timing, regularity, and RAR metrics. This study assessed cross-sectional associations between sleep and RAR regularity and timing with overall diet quality. Methods Multi-ethnic Study of Atherosclerosis (MESA) participants who completed validated sleep and food frequency questionnaires and 7-day actigraphy monitoring (Actiwatch Spectrum) between 2010-2013 were eligible for study inclusion. Overall diet quality was measured with the Alternate Healthy Eating Index (AHEI) 2010 (range: 0-110, higher indicates healthier diet). Actigraphy records were processed using Actiware-Sleep (v5.59) software and manually annotated using a sleep diary. Sleep timing was measured with average sleep midpoint, and sleep regularity measures included within-individual standard deviation (SD) of daily sleep duration and onset. Parametric (extended cosine) and nonparametric 24-hour RAR measures were derived from 1-minute epoch-level activity counts. Associations between sleep and RAR metrics with AHEI were tested with multivariable linear regression adjusting for total energy intake, sociodemographic and lifestyle factors including smoking, total activity, and depressive symptoms. Results This study included 1828 participants (mean [SD]: age: 68.5 [9] years, AHEI: 59 [10.9]; 46% male). Later sleep midpoint and L5-time (start time of the 5 least active hours) were associated with lower AHEI (0.61% and 0.77% lower AHEI per SD later midpoint [p=0.005] and L5-time [p=0.001], respectively). Irregular sleep timing (sleep onset-SD >60 minutes [vs. less]) was associated with 1.1% lower AHEI (p=0.014). Rhythm robustness, measured by the pseudo-F (parametric RAR) and relative amplitude (RA, non-parametric RAR) was associated with higher AHEI (0.49% and 0.48% higher AHEI per SD increase in pseudo-F [p=0.031] and RA [p=0.036], respectively). The associations between later sleep midpoint and L5-time with lower AHEI were robust to false discovery rate (FDR)-corrected significance thresholds. Conclusion Actigraphy-based measures of later sleep timing, irregular sleep, and weakened rest-activity rhythms were associated with lower/worse diet quality in an older, multi-ethnic sample, suggesting their potential utility in multi-component lifestyle interventions. Support (if any) NIH NHLIB T32HL007901, NHLBI HL56984, and NIA R01AG070867

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【要点】：本研究通过多民族动脉粥样硬化研究（MESA）发现，较晚的睡眠时间、不规律的睡眠以及减弱的休息-活动节律与较差的饮食质量相关。

【方法】：采用多变量线性回归分析，调整总能量摄入、社会人口学及生活方式因素，研究睡眠和休息-活动节律指标与饮食质量指数（AHEI）之间的关联。

【实验】：研究纳入1828名完成睡眠和食物频率问卷以及7天活动监测（Actiwatch Spectrum）的参与者，使用Actiware-Sleep软件处理活动记录，并手动注释睡眠日记。结果显示，较晚的睡眠中点、L5时间（最不活跃5小时的开始时间）以及睡眠不规律性与较低的AHEI相关，而节律稳健性与较高的AHEI相关。