农村地区老年人饮用水源与认知功能的关系。

Association between drinking water sources and cognitive functioning in Chinese older adults residing in rural areas.

机构信息

School of Public Health, Bengbu Medical University, Bengbu, China.

出版信息

Int J Geriatr Psychiatry. 2024 Jun;39(6):e6110. doi: 10.1002/gps.6110.

DOI:10.1002/gps.6110

PMID:38831201

Abstract

OBJECTIVES

To explore the association between drinking water sources and cognitive functioning among older adults residing in rural China.

METHODS

Data were extracted from the 2008-2018 Chinese Longitudinal Healthy Longevity Survey. Drinking water sources were categorized according to whether purification measures were employed. The Chinese version of the Mini-Mental State Examination was used for cognitive functioning assessment, and the score of <24 was considered as having cognitive dysfunction. Cox regression analyses were conducted to derive hazard ratios (HRs) and 95% confidence intervals (CIs) for the effects of various drinking water sources, changes in such sources, and its interaction with exercise on cognition dysfunction.

RESULTS

We included 2304 respondents aged 79.67 ± 10.02 years; of them, 1084 (44.49%) were men. Our adjusted model revealed that respondents consistently drinking tap water were 21% less likely to experience cognitive dysfunction compared with those drinking untreated water (HR = 0.79, 95% CI: 0.70-0.90). Respondents transitioning from natural to tap water showed were 33% less likely to experience cognitive dysfunction (HR = 0.67, 95% CI: 0.58-0.78). Moreover, the HR (95% CI) for the interaction between drinking tap water and exercising was 0.86 (0.75-1.00) when compared with that between drinking untreated water and not exercising. All results adjusted for age, occupation, exercise, and body mass index.

CONCLUSIONS

Prolonged tap water consumption and switching from untreated water to tap water were associated with a decreased risk of cognitive dysfunction in older individuals. Additionally, exercising and drinking tap water was synergistically associated with the low incidence of cognitive dysfunction. These findings demonstrate the importance of prioritizing drinking water health in rural areas, indicating that purified tap water can enhance cognitive function among older adults.

摘要

目的

探讨中国农村老年人饮用水源与认知功能之间的关系。

方法

数据来自 2008-2018 年中国长寿纵向研究。饮用水源根据是否采用净化措施进行分类。使用中文版简易精神状态检查评估认知功能，得分<24 分被认为存在认知功能障碍。采用 Cox 回归分析得出各种饮用水源、水源变化及其与运动的交互作用对认知功能障碍的影响的风险比（HR）和 95%置信区间（CI）。

结果

我们纳入了 2304 名年龄为 79.67±10.02 岁的受访者；其中，1084 名（44.49%）为男性。调整后的模型显示，与饮用未处理水的受访者相比，持续饮用自来水的受访者发生认知功能障碍的风险低 21%（HR=0.79，95%CI：0.70-0.90）。从自然水转为自来水的受访者发生认知功能障碍的风险低 33%（HR=0.67，95%CI：0.58-0.78）。此外，与饮用未处理水且不运动相比，饮用自来水且运动的交互作用的 HR（95%CI）为 0.86（0.75-1.00）。所有结果均调整了年龄、职业、运动和体重指数。