职业与健康 ›› 2026, Vol. 42 ›› Issue (9): 1238-1243.

• 论著 • 上一篇    下一篇

抑郁症状在社区老年人久坐行为与认知衰弱间的中介效应

马雪1, 韩小云2(), 史珣瑜2, 黄钰雯1, 熊亚玲1   

  1. 1.苏州大学苏州医学院,江苏 苏州 215006
    2.苏州大学附属第三医院,江苏 常州 213000
  • 收稿日期:2025-08-05 修回日期:2025-08-25 出版日期:2026-05-01 发布日期:2026-05-22
  • 通信作者: 韩小云,E-mail:hxy1427@qq.com
  • 作者简介:马雪,女,在读硕士研究生,研究方向为老年护理。
  • 基金资助:
    常州市医学重点学科基金(CZXK202202)

Mediating effects of depressive symptoms between sedentary behavior and cognitive frailty in community-dwelling older adults

MA Xue1, HAN Xiaoyun2(), SHI Xunyu2, HUANG Yuwen1, XIONG Yaling1   

  1. 1. Suzhou Medical College,Soochow University,Suzhou,Jiangsu 215006,China
    2. Third Affiliated Hospital of Soochow University, Changzhou,Jiangsu 213000,China
  • Received:2025-08-05 Revised:2025-08-25 Online:2026-05-01 Published:2026-05-22
  • Contact: HAN Xiaoyun,E-mail:hxy1427@qq.com

摘要:

目的 探讨社区老年人抑郁症状在久坐行为与认知衰弱间的中介作用,为减缓认知衰弱的发生发展及相应干预措施的制定提供思路和依据。方法 采用便利抽样法,于2023年2—7月选取常州市2所社区内居住的504名老年人作为研究对象,采用一般资料调查问卷、国际体力活动问卷短卷、5条目老年抑郁量表、衰弱表型和蒙特利尔认知评估量表进行调查,采用多因素Logistic回归和Z检验探究抑郁症状在老年人久坐行为与认知衰弱间的中介效应是否显著,使用AMOS 26.0软件探究久坐行为、抑郁症状与认知衰弱三者间的作用路径及各路径效应值的95%CI结果 504名老年人中存在久坐行为、抑郁症状和认知衰弱的分别为282例(56.0%)、156例(31.0%)和89例(17.7%),久坐行为(OR=4.464,95%CI:1.822~10.940)、抑郁症状(OR=6.497,95%CI:2.871~14.700)均与社区老年人认知衰弱的发生显著相关。抑郁症状在久坐行为与认知衰弱间的中介效应显著(Z=2.413,P<0.05),效应值为0.082(P<0.05),效应占比24.19%。结论 社区老年人抑郁症状在久坐行为与认知衰弱间发挥部分中介作用。提示社区工作者及医务人员不仅要干预老年人久坐的生活方式,还应重视久坐老年人抑郁症状的筛查,从两方面着手以最大程度地预防和减缓认知衰弱的发生与进展。

关键词: 老年人, 久坐行为, 抑郁症状, 认知衰弱, 路径分析, 中介效应

Abstract:

Objective To explore the mediating role of depressive symptoms between sedentary behavior and cognitive frailty in community-dwelling older adults,providing insights and evidence for slowing the onset and progression of cognitive frailty and developing corresponding intervention measures. Methods A convenience sampling method was used to select 504 cases of older adults living in two communities in Changzhou City from February to July 2023 as the study subjects. The general information questionnaire,international physical activity questionnaire-short,5-itom geriatric depression scale,frailty phenotype and Montreal cognitive assessment scale were used to conduct the investigation. The multivariate Logistic regression and Z-test were used to investigate whether the mediating effect of depressive symptoms between sedentary behavior and cognitive frailty in older adults was significant or not. The pathways between sedentary behavior,depressive symptoms and cognitive frailty,and the 95%CI for the effect values of each pathway were investigated using AMOS 26.0 software. Results The sedentary behavior,depressive symptoms, and cognitive frailty were present in 282(56.0%),156(31.0%),and 89(17.7%) of the 504 older adults,respectively. The sedentary behavior(OR=4.464,95%CI:1.822-10.940) and depressive symptoms(OR=6.497,95%CI:2.871-14.700) were significantly associated with the occurrence of cognitive frailty among community-dwelling older adults. The mediating effect of depressive symptoms between sedentary behavior and cognitive frailty was significant(Z=2.413,P<0.05),with an effect value of 0.082(P<0.05) and an effect percentage of 24.19%. Conclusions The depressive symptoms play a partially mediating role in the relationship between sedentary behavior and cognitive frailty in community-dwelling older adults. It is suggested that community workers and healthcare professionals should not only intervene in the sedentary lifestyle of older adults,but also focus on screening for depressive symptoms in sedentary older adults,to maximize the prevention and slowing of the incidence and progression of cognitive frailty.

Key words: Older adults, Sedentary behavior, Depressive symptoms, Cognitive frailty, Path analysis, Mediating effect

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