睡眠(系统调用)
昼夜节律
医学
血压
活动记录
人口
动态血压
民族
内科学
心脏病学
人口学
环境卫生
社会学
计算机科学
人类学
操作系统
作者
Yanyan Xu,Vernon A. Barnes,Ryan A. Harris,Michelle Altvater,Celestine Williams,Kimberly Norland,Jacob Looney,Reva Crandall,Shaoyong Su,Xiaoling Wang
出处
期刊:Hypertension
[Ovid Technologies (Wolters Kluwer)]
日期:2023-12-01
卷期号:80 (12): 2621-2626
标识
DOI:10.1161/hypertensionaha.123.21497
摘要
BACKGROUND: Circadian rhythm regulates many important biological functions in humans. The goal of this study is to explore the impact of day-to-day deviations in the sleep-wake cycle on nighttime blood pressure (BP) dipping and further examine whether the ethnic difference in day-to-day deviations in sleep patterns can explain the ethnic difference in nighttime BP dipping. METHODS: Twenty-four-hour ambulatory BP monitoring and 7-day accelerometer data were obtained from 365 adult participants (age range, 18.7–50.1 years; 52.6% Black participants and 47.3% European Americans; 64.1% females). Systolic BP dipping level was used to represent nighttime BP dipping. The SD of sleep duration was calculated as the index of sleep variability, and the SD of sleep midpoint was calculated as the index of sleep irregularity. RESULTS: A 1-hour increase in the SD of sleep midpoint was associated with a 1.16% decrease in nighttime BP dipping ( P <0.001). A 1-hour increase in the SD of sleep duration was associated with a 1.39% decrease in nighttime BP dipping ( P =0.017). The ethnic difference in the SD of sleep midpoint can explain 29.2% of the ethnicity difference in BP dipping ( P =0.008). CONCLUSIONS: Sleep variability and sleep irregularity are associated with blunted BP dipping in the general population. In addition, data from the present investigation also demonstrate that the ethnic difference in sleep irregularity could partly explain the ethnic difference in BP dipping, an important finding that may help reduce the health disparity between Black participants and European Americans.
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