Department of Clinical Nutrition and Dietetics, College of Health Sciences/Research Institute of Medical and Health Sciences (RIMHS), University of Sharjah, Sharjah, United Arab Emirates.
Ministry of Health, Manama, Bahrain.
Sleep Breath. 2020 Jun;24(2):771-782. doi: 10.1007/s11325-019-01986-1. Epub 2019 Dec 12.
The current meta-analysis aimed to obtain a more stable estimate of the effect size of Ramadan diurnal intermittent fasting (RDF) on sleep duration and daytime sleepiness.
Databases (Scopus, ScienceDirect, ProQuest Medical, PubMed/MEDLINE, Web of Science, EBSCOhost, Cochrane, CINAHL, and Google Scholar) were searched from database inception to the end of June 2019. The sleep quality measures analyzed were excessive daytime sleepiness (EDS) measured by the Epworth sleepiness scale (ESS) and total sleep time (TST). Subgroup analyses for age, sex, and levels of physical activity were conducted.
We identified 24 studies (involving 646 participants, median age 23.7 years, 73% men) conducted in 12 countries from 2001 to 2019. The results revealed that TST decreased from 7.2 h per night [95% confidence interval (CI) 6.7-7.8] before Ramadan to 6.4 h (95% CI 5.3-7.5) during Ramadan, while the ESS score increased slightly from 6.1 (95% CI 4.5-7.7) before Ramadan to 7.0 (95% CI 5.2-8.8) during Ramadan. Effect sizes on sleep quality measures during RDF demonstrated a moderate reduction in TST (number of studies, K = 22; number of subjects, N = 571, Hedges' g value of -0.43, 95% CI - 0.64 to -0.22, Q = 90, τ = 0.15, I = 78%, P < 0.001), while ESS score showed negligible effect on EDS (K = 9, N = 362, Hedges' g value of -0.06, 95% CI -0.43 to 0.28, Q = 21, τ = 0.13, I = 76%, P value = 0.001).
During the month of Ramadan, there is approximately a 1 hour reduction in TST and nearly a 1 point increase in the ESS score.
本次荟萃分析旨在获得更稳定的斋月日间间歇性禁食（RDF）对睡眠时间和日间嗜睡影响的效应量估计值。
从数据库建立到 2019 年 6 月底，在 Scopus、ScienceDirect、ProQuest Medical、PubMed/MEDLINE、Web of Science、EBSCOhost、Cochrane、CINAHL 和 Google Scholar 等数据库中进行检索。分析的睡眠质量测量指标包括通过 Epworth 嗜睡量表（ESS）测量的过度日间嗜睡（EDS）和总睡眠时间（TST）。进行了年龄、性别和体力活动水平的亚组分析。
我们确定了 2001 年至 2019 年期间在 12 个国家进行的 24 项研究（涉及 646 名参与者，中位年龄 23.7 岁，73%为男性）。结果表明，TST 从斋月前的每晚 7.2 小时[95%置信区间（CI）6.7-7.8]减少到斋月期间的每晚 6.4 小时[95%CI 5.3-7.5]，而 ESS 评分从斋月前的 6.1 分（95%CI 4.5-7.7）略有增加到斋月期间的 7.0 分（95%CI 5.2-8.8）。RDF 期间睡眠质量测量的效应大小表明 TST 适度减少（研究数量，K=22；研究对象数量，N=571，Hedges'g 值为-0.43，95%CI-0.64 至-0.22，Q=90，τ=0.15，I=78%，P<0.001），而 ESS 评分对 EDS 几乎没有影响（K=9，N=362，Hedges'g 值为-0.06，95%CI-0.43 至 0.28，Q=21，τ=0.13，I=76%，P 值=0.001）。
在斋月期间，TST 大约减少 1 小时，ESS 评分增加近 1 分。
