Gardening and subjective cognitive decline: a cross-sectional study and mediation analyses of 136,748 adults aged 45+ years.

IF 4.4 2区医学 Q1 NUTRITION & DIETETICS Nutrition Journal Pub Date : 2024-06-04 DOI:10.1186/s12937-024-00959-9

Kaiyue Wang, Yaqi Li, Xiao Chen, Susan Veldheer, Chen Wang, Han Wang, Liang Sun, Xiang Gao

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Abstract

Background: Given the benefits of gardening for physical and psychological health, we explored whether gardening was associated with lower risks of subjective cognitive decline (SCD), a precursor of dementia, and SCD-related functional limitations.

Methods: Included in this cross-sectional study were 136,748 participants aged 45 + years old from the Behavioral Risk Factor Surveillance System 2019 survey, who were then categorized into three groups according to self-reported exercise status: non-exercisers, gardeners, and other exercisers. SCD was assessed via a questionnaire, and SCD-related functional limitations were referred to as having difficulties in engaging in household or social activities due to SCD. The odds ratio (OR) and 95% confidence interval (CI) were calculated to assess the associations of gardening with SCD and SCD-related functional limitations, adjusted for age, sex, socioeconomic status, lifestyle factors, and health status. Mediation analyses were conducted to examine whether the observed association between gardening and SCD was mediated by energy expenditure (MET-hours/week), depression status, and consumption of fruits and vegetables.

Results: Overall, 11.1% and 5.4% of participants self-reported experiencing SCD and SCD-related functional limitations, respectively. The adjusted OR for gardeners vs. non-exercisers, was 0.72 (95% CI 0.62-0.83) for SCD and 0.57 (95% CI 0.44-0.73) for SCD-related functional limitations. The observed association between gardening and SCD was explained by higher energy expenditure (39.0%), lower likelihood of having depression (21.5%), and higher consumption of fruits and vegetables (3.4%) (P<0.05 for all). Similar patterns were observed for SCD-related functional limitations.

Conclusion: In this nationally representative sample, gardening was associated with better cognitive status, which may be mainly attributed to better depression status and energy expenditure.

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园艺与主观认知能力下降：对 136 748 名 45 岁以上成年人进行的横断面研究和中介分析。

背景：鉴于园艺对身体和心理健康的益处，我们探讨了园艺是否与较低的主观认知能力下降（SCD）风险（痴呆症的前兆）以及与SCD相关的功能限制有关：这项横断面研究的对象是行为风险因素监测系统 2019 年调查中年龄在 45 岁以上的 136 748 名参与者，然后根据自我报告的运动状况将他们分为三组：非运动者、园艺工作者和其他运动者。SCD通过问卷调查进行评估，与SCD相关的功能限制指的是由于SCD而在从事家庭或社会活动时遇到困难。计算了几率比（OR）和 95% 的置信区间（CI），以评估园艺与 SCD 和 SCD 相关功能限制的关系，并对年龄、性别、社会经济地位、生活方式因素和健康状况进行了调整。研究人员还进行了中介分析，以考察所观察到的园艺与 SCD 之间的关系是否受到能量消耗（MET-小时/周）、抑郁状况以及水果和蔬菜摄入量的影响：总体而言，分别有 11.1% 和 5.4% 的参与者自述经历过 SCD 和与 SCD 相关的功能限制。园艺者与非运动者相比，SCD 的调整 OR 为 0.72（95% CI 0.62-0.83），SCD 相关功能限制的调整 OR 为 0.57（95% CI 0.44-0.73）。所观察到的园艺与 SCD 之间的关联可通过更高的能量消耗（39.0%）、更低的抑郁可能性（21.5%）以及更高的水果和蔬菜消耗量（3.4%）来解释（PC 结论：在这个具有全国代表性的样本中，园艺与较好的认知状况有关，这可能主要归因于较好的抑郁状况和能量消耗。

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

Nutrition Journal NUTRITION & DIETETICS-

CiteScore

9.80

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Nutrition Journal publishes surveillance, epidemiologic, and intervention research that sheds light on i) influences (e.g., familial, environmental) on eating patterns; ii) associations between eating patterns and health, and iii) strategies to improve eating patterns among populations. The journal also welcomes manuscripts reporting on the psychometric properties (e.g., validity, reliability) and feasibility of methods (e.g., for assessing dietary intake) for human nutrition research. In addition, study protocols for controlled trials and cohort studies, with an emphasis on methods for assessing dietary exposures and outcomes as well as intervention components, will be considered. Manuscripts that consider eating patterns holistically, as opposed to solely reductionist approaches that focus on specific dietary components in isolation, are encouraged. Also encouraged are papers that take a holistic or systems perspective in attempting to understand possible compensatory and differential effects of nutrition interventions. The journal does not consider animal studies. In addition to the influence of eating patterns for human health, we also invite research providing insights into the environmental sustainability of dietary practices. Again, a holistic perspective is encouraged, for example, through the consideration of how eating patterns might maximize both human and planetary health.