Association between light exposure and sleep problems related to nocturia in older adults: the Nagahama study.

IF 4 4区医学 Q1 PHYSIOLOGY

Journal of Physiological Anthropology Pub Date : 2026-04-08 DOI:10.1186/s40101-026-00429-7

Isuzu Nakamoto, Sayaka Uiji, Hiromitsu Negoro, Takayuki Yoshino, Sachiko Horita, Kazuya Setoh, Yasuharu Tabara, Kimihiko Murase, Takuma Minami, Takeshi Matsumoto, Yoshinari Nakatsuka, Satoshi Hamada, Naomi Takahashi, Naoko Komenami, Fumihiko Matsuda, Kazuo Chin, Tomoko Wakamura

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引用次数: 0

Abstract

Background: The prevalence of nocturia-related sleep problems is higher in older people. This study investigated whether morning and evening light exposure is associated with the sleep problems related to objectively identified nocturnal urination in community-dwelling older adults.

Methods: This cross-sectional study analyzed data collected between 2013 and 2016 for the Nagahama Prospective Cohort for Comprehensive Human Bioscience (the Nagahama Study). The study included 1585 participants aged ≥ 65 years who met the criteria for inclusion in the present analysis. An actigraph was used to measure sleep, nocturnal voiding time, and light exposure. The frequency of nocturnal voiding was derived from self-reported entries in the participants' sleep diaries. Morning light (ML) exposure was defined as the period between waking and 12:00, while evening light (EL) exposure was defined as the period between 18:00 and bedtime. The first uninterrupted sleep period (FUSP) was calculated as the interval between the sleep onset time and the first nocturnal void. Additionally, the ratio of FUSP to sleep period time (FUSP/SPT) was calculated. Associations between light exposure parameters and the frequency of nocturnal voiding, FUSP, or FUSP/SPT were examined using multivariable linear regression models.

Results: Of the 1585 participants, 38.7% were male median age was 70 years. The median nocturnal voiding frequency was 1.0 times (IQR: 0.4, 1.4) and the median FUSP was 4.6 h (IQR: 3.2, 5.9). In multivariable linear regression, log ML exposure was significantly associated with FUSP and FUSP/SPT (B = 0.17, 95% CI: 0.02, 0.32; B = 2.20, 95% CI: 0.26, 4.14, respectively). In contrast, the duration of ML exposure ≥ 1,000 lx, EL exposure, and the duration of EL exposure ≥ 50 lx were not significantly associated with the frequency of nocturnal voiding, FUSP or FUSP/SPT.

Conclusions: Greater morning light exposure was associated with a longer FUSP. Morning bright light exposure may therefore help delay nocturia-related sleep interruptions, potentially contributing to improved sleep quality among older people.

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光照与老年人夜尿症相关睡眠问题之间的关系：Nagahama研究。

背景：夜尿症相关睡眠问题的患病率在老年人中较高。本研究调查了在社区居住的老年人中，早晨和晚上的光照是否与客观确定的夜间排尿相关的睡眠问题有关。方法：本横断面研究分析了2013年至2016年间收集的Nagahama综合人类生物科学前瞻性队列（Nagahama study）数据。该研究纳入1585名年龄≥65岁且符合本分析纳入标准的受试者。活动记录仪用于测量睡眠、夜间排尿时间和光照。夜间排尿的频率来源于参与者睡眠日记中的自我报告条目。晨光（ML）暴露定义为从醒来到12:00之间的时间，而夜晚光（EL）暴露定义为从18:00到就寝时间。第一次不间断睡眠时间（FUSP）计算为睡眠开始时间和第一次夜间空白之间的间隔。此外，计算FUSP与睡眠时间的比值（FUSP/SPT）。使用多变量线性回归模型检验光照参数与夜间排尿频率、FUSP或FUSP/SPT之间的关系。结果：1585名参与者中，38.7%为男性，中位年龄为70岁。夜间排尿次数中位数为1.0次（IQR: 0.4, 1.4），夜间排尿时间中位数为4.6 h （IQR: 3.2, 5.9）。在多变量线性回归中，对数ML暴露与FUSP和FUSP/SPT显著相关（B = 0.17, 95% CI: 0.02, 0.32; B = 2.20, 95% CI: 0.26, 4.14）。相比之下，ML暴露时间≥1000 lx、EL暴露时间≥50 lx和EL暴露时间与夜间排尿频率、FUSP或FUSP/SPT无显著相关。结论：较多的晨光暴露与较长的FUSP有关。因此，晨光照射可能有助于延缓夜尿症相关的睡眠中断，可能有助于改善老年人的睡眠质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Physiological Anthropology PHYSIOLOGY-

自引率

6.50%

发文量

期刊介绍： Journal of Physiological Anthropology (JPA) is an open access, peer-reviewed journal that publishes research on the physiological functions of modern mankind, with an emphasis on the physical and bio-cultural effects on human adaptability to the current environment. The objective of JPA is to evaluate physiological adaptations to modern living environments, and to publish research from different scientific fields concerned with environmental impact on human life. Topic areas include, but are not limited to: environmental physiology bio-cultural environment living environment epigenetic adaptation development and growth age and sex differences nutrition and morphology physical fitness and health Journal of Physiological Anthropology is the official journal of the Japan Society of Physiological Anthropology.