Sleep Medicine Center, Department of Urology, Mental Health Center, Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Dian Xin Nan Jie 28#, Chengdu, 610041, China.
Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, 98195, USA.
BMC Public Health. 2023 Oct 9;23(1):1953. doi: 10.1186/s12889-023-16836-9.
Insomnia predisposes the aging population to reduced quality of life and poor mental and physical health. Evidence of the association between polluted fuel use and insomnia symptoms is limited and is non-existent for the Indian population. Our study aimed to explore the link between polluted fuel use and insomnia symptoms in middle-aged and older (≥ 45 years) Indian populations.
We utilized data from nationally representative Longitudinal Aging Study in India (LASI) Wave 1. Participants with complete information on fuel use, insomnia symptoms, and covariates were included. Insomnia symptoms were indicated by the presence of at least one of three symptoms: difficulty in initiating sleep (DIS), difficulty in maintaining sleep (DMS), or early morning awakening (EMA), ≥ 5 times/week. Survey-weighted multivariable logistic regression analyses were conducted to evaluate the association between polluted fuel use and insomnia symptoms. We also assessed the interaction of association in subgroups of age, gender, BMI, drinking, and smoking status.
Sixty thousand five hundred fifteen participants met the eligibility criteria. Twenty-eight thousand two hundred thirty-six (weighted percentage 48.04%) used polluted fuel and 5461 (weighted percentage 9.90%) reported insomnia symptoms. After full adjustment, polluted fuel use was associated with insomnia symptoms (OR 1.16; 95%CI 1.08-1.24) and was linked with DIS, DMS, and EMA (OR 1.14; 95%CI 1.05-1.24, OR 1.12; 95%CI 1.03-1.22, and OR 1.15; 95%CI 1.06-1.25, respectively). No significant interactions for polluted fuel use and insomnia symptoms were observed for analyses stratified by age, sex, BMI, drinking, or smoking.
Polluted fuel use was positively related to insomnia symptoms among middle-aged and older Indians. Suggestions are offered within this article for further studies to confirm our results, to explore underlying mechanisms, and to inform intervention strategies.
失眠使老年人群的生活质量下降,导致精神和身体健康状况恶化。有证据表明,使用污染燃料与失眠症状之间存在关联,但针对印度人群的相关证据尚不存在。本研究旨在探讨印度中老年(≥45 岁)人群中使用污染燃料与失眠症状之间的联系。
我们利用来自印度全国代表性纵向老龄化研究(LASI)第 1 波的数据。纳入了有完整燃料使用、失眠症状和协变量信息的参与者。失眠症状通过至少出现以下三种症状之一来表示:入睡困难(DIS)、睡眠维持困难(DMS)或早醒(EMA),每周≥5 次。采用调查加权多变量逻辑回归分析评估使用污染燃料与失眠症状之间的关联。我们还评估了年龄、性别、BMI、饮酒和吸烟状况亚组中关联的交互作用。
共有 6515 名符合入选标准的参与者。28236 人(加权百分比为 48.04%)使用污染燃料,5461 人(加权百分比为 9.90%)报告有失眠症状。经过完全调整后,使用污染燃料与失眠症状相关(OR 1.16;95%CI 1.08-1.24),并与 DIS、DMS 和 EMA 相关(OR 1.14;95%CI 1.05-1.24、OR 1.12;95%CI 1.03-1.22 和 OR 1.15;95%CI 1.06-1.25)。按年龄、性别、BMI、饮酒和吸烟分层分析时,未观察到使用污染燃料与失眠症状之间存在显著交互作用。
在印度中老年人群中,使用污染燃料与失眠症状呈正相关。本文提出了进一步研究的建议,以确认我们的结果,探索潜在机制,并为干预策略提供信息。