促进健康的生活方式对中国社区居住的老年人衰弱和抑郁症状的中介和调节作用：一项横断面研究。
The mediating and moderating effect of health-promoting lifestyle on frailty and depressive symptoms for Chinese community-dwelling older adults: A cross-sectional study.
机构信息
Department of Epidemiology and Health Statistics, School of Public Health, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan 750004, China.
Department of Epidemiology and Health Statistics, School of Public Health, Ningxia Medical University, Yinchuan 750004, China.
出版信息
J Affect Disord. 2024 Sep 15;361:91-96. doi: 10.1016/j.jad.2024.06.011. Epub 2024 Jun 8.
BACKGROUND
This study aims to explore the mediating and moderating effect of health-promoting lifestyles on the relationship between frailty and depressive symptoms to provide a practical reference for effectively promoting the mental health of older adults.
METHODS
A cross-sectional survey of community-dwelling older adults (n = 3107) was conducted in three cities of Ningxia Province, China. Depressive symptoms, frailty, and health-promoting lifestyles were assessed through the 30-item Geriatric Depression Scale, frailty scale, and health-promoting Lifestyle profile-II, respectively. The Bootstrap methods PROCESS program is employed to test the mediation and moderation model.
RESULTS
The findings indicated that health-promoting lifestyles are negatively related to depressive symptoms and frailty, while frailty is positively associated with depressive symptoms. Health-promoting lifestyles have mediated the relationship between frailty and depressive symptoms. Besides, the health-promoting lifestyles weakened the positive relationship between frailty and depression symptoms; there existed a moderating effect of health-promoting lifestyles on the relationship between frailty and depression symptoms among older adults.
LIMITATIONS
Given the cross-sectional study, it is impossible to make causal inferences.
CONCLUSIONS
A health-promoting lifestyle might be a protective factor for older adults' health in China. The mediating and moderating effect of a health-promoting lifestyle on the relationship between frailty and depression symptoms among older adults should be integrated to achieve maximum utility. Healthcare practitioners and medical service personnel are recommended to advance health education and publicity, encouraging healthy lifestyles among community-dwelling older adults with frailty to prevent depressive symptoms and promote healthy aging.
背景
本研究旨在探讨健康促进生活方式对衰弱和抑郁症状之间关系的中介和调节作用，为有效促进老年人心理健康提供实践参考。
方法
在中国宁夏的三个城市进行了一项社区居住的老年人（n=3107）的横断面调查。使用 30 项老年抑郁量表、衰弱量表和健康促进生活方式量表-Ⅱ分别评估抑郁症状、衰弱和健康促进生活方式。使用 Bootstrap 方法 PROCESS 程序检验中介和调节模型。
结果
研究结果表明，健康促进生活方式与抑郁症状和衰弱呈负相关，而衰弱与抑郁症状呈正相关。健康促进生活方式在衰弱和抑郁症状之间起中介作用。此外，健康促进生活方式削弱了衰弱和抑郁症状之间的正相关关系；健康促进生活方式对老年人衰弱和抑郁症状之间的关系具有调节作用。
局限性
由于本研究为横断面研究，因此无法做出因果推断。
结论
健康促进生活方式可能是中国老年人健康的保护因素。健康促进生活方式对衰弱和抑郁症状之间关系的中介和调节作用应综合考虑，以达到最大效用。建议医疗保健从业者和医务人员推进健康教育和宣传，鼓励社区居住的衰弱老年人养成健康的生活方式，预防抑郁症状，促进健康老龄化。
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