Abstract：
OBJECTIVE: Negative life events have been reported as a risk factor for depression. However, the mechanism between negative life events and depression is still unclear. This study aimed to explore the mediating role of sleep quality and the moderating role of economic income in the association between negative life events and depression among older adults aged 60 years and over.
METHODS: A multi-stage stratified sampling method was used to select elderly individuals over 60 years old in Shandong, China, making use of the Household Health Interview Survey (2020). In total, 3868 older adults completed the measures of negative life events, sleep quality, depression, and economic income.
RESULTS: Negative life events positively predicted depression among the elderly (proportion of direct effect, 55.12%), and poor sleep quality could mediate this association (proportion of indirect effect, 44.87%). Economic income played a moderating role in the relationship between negative life events, sleep quality, and depression (the first and second half of the mediating effect, the direct effect of negative life events on depression). Both effects were weaker among the elderly with higher economic incomes.
CONCLUSIONS: Negative life events had positive effects on depression in older adults. Economic income moderated the direct effect of negative life events and the mediating effect (first and second half) of sleep quality on depression. When the elderly experience negative life events, interventions for improving their sleep quality and financial support could effectively prevent depression. Geriatr Gerontol Int 2024; 24: 751-757.
METHODS: A multi-stage stratified sampling method was used to select elderly individuals over 60 years old in Shandong, China, making use of the Household Health Interview Survey (2020). In total, 3868 older adults completed the measures of negative life events, sleep quality, depression, and economic income.
RESULTS: Negative life events positively predicted depression among the elderly (proportion of direct effect, 55.12%), and poor sleep quality could mediate this association (proportion of indirect effect, 44.87%). Economic income played a moderating role in the relationship between negative life events, sleep quality, and depression (the first and second half of the mediating effect, the direct effect of negative life events on depression). Both effects were weaker among the elderly with higher economic incomes.
CONCLUSIONS: Negative life events had positive effects on depression in older adults. Economic income moderated the direct effect of negative life events and the mediating effect (first and second half) of sleep quality on depression. When the elderly experience negative life events, interventions for improving their sleep quality and financial support could effectively prevent depression. Geriatr Gerontol Int 2024; 24: 751-757.
摘要：
目的：负性生活事件被报道为抑郁症的危险因素。然而,负性生活事件与抑郁之间的机制尚不清楚。本研究旨在探讨睡眠质量的中介作用和经济收入在60岁及以上老年人负性生活事件与抑郁之间的调节作用。
方法:采用多阶段分层抽样方法,选取山东省60岁以上老年人,中国,利用家庭健康访谈调查(2020年)。总的来说,3868名老年人完成了负面生活事件的测量，睡眠质量,抑郁症,和经济收入。
结果：负性生活事件正预测老年人的抑郁（直接影响的比例，55.12%），睡眠质量差可以介导这种联系(间接影响的比例，44.87%）。经济收入在负性生活事件之间的关系中起着调节作用，睡眠质量,和抑郁(中介效应的前半部分和后半部分，负性生活事件对抑郁症的直接影响)。在经济收入较高的老年人中，这两种影响都较弱。
结论：负性生活事件对老年人的抑郁有积极影响。经济收入调节了负性生活事件的直接作用以及睡眠质量对抑郁的中介作用(上、下半部分)。当老年人经历负面生活事件时，改善睡眠质量和经济支持的干预措施可以有效预防抑郁症。GeriatrGerontolInt2024；24：751-757。
方法:采用多阶段分层抽样方法,选取山东省60岁以上老年人,中国,利用家庭健康访谈调查(2020年)。总的来说,3868名老年人完成了负面生活事件的测量，睡眠质量,抑郁症,和经济收入。
结果：负性生活事件正预测老年人的抑郁（直接影响的比例，55.12%），睡眠质量差可以介导这种联系(间接影响的比例，44.87%）。经济收入在负性生活事件之间的关系中起着调节作用，睡眠质量,和抑郁(中介效应的前半部分和后半部分，负性生活事件对抑郁症的直接影响)。在经济收入较高的老年人中，这两种影响都较弱。
结论：负性生活事件对老年人的抑郁有积极影响。经济收入调节了负性生活事件的直接作用以及睡眠质量对抑郁的中介作用(上、下半部分)。当老年人经历负面生活事件时，改善睡眠质量和经济支持的干预措施可以有效预防抑郁症。GeriatrGerontolInt2024；24：751-757。
