Jacobson Nicholas C, Lord Kayla A, Newman Michelle G
The Pennsylvania State University, United States.
The Pennsylvania State University, United States.
J Affect Disord. 2017 Mar 15;211:83-91. doi: 10.1016/j.jad.2017.01.011. Epub 2017 Jan 5.
Prior research has shown that anxiety symptoms predict later depression symptoms following bereavement. Nevertheless, no research has investigated mechanisms of the temporal relationship between anxiety and later depressive symptoms or examined the impact of depressive symptoms on later anxiety symptoms following bereavement.
The current study examined perceived emotional social support as a possible mediator between anxiety and depressive symptoms in a bereaved sample of older adults (N =250). Anxiety and depressive symptoms were measured at Wave 1 (immediately after bereavement), social support was measured at Wave 2 (18 months after bereavement), and anxiety and depressive symptoms were also measured at Wave 3 (48 months after bereavement).
Using Bayesian structural equation models, when controlling for baseline depression, anxiety symptoms significantly positively predicted depressive symptoms 48 months later, Further, perceived emotional social support significantly mediated the relationship between anxiety symptoms and later depressive symptoms, such that anxiety symptoms significantly negatively predicted later emotional social support, and emotional social support significantly negatively predicted later depressive symptoms. Also, when controlling for baseline anxiety, depressive symptoms positively predicted anxiety symptoms 48 months later. However, low emotional social support failed to mediate this relationship.
Low perceived emotional social support may be a mechanism by which anxiety symptoms predict depressive symptoms 48 months later for bereaved individuals.
先前的研究表明,丧亲后焦虑症状可预测随后出现的抑郁症状。然而,尚无研究调查焦虑与后期抑郁症状之间时间关系的机制,也未考察丧亲后抑郁症状对后期焦虑症状的影响。
本研究在一个老年丧亲样本(N = 250)中,检验了感知到的情感社会支持作为焦虑与抑郁症状之间可能的中介变量。在第1波(丧亲后立即)测量焦虑和抑郁症状,在第2波(丧亲后18个月)测量社会支持,在第3波(丧亲后48个月)也测量焦虑和抑郁症状。
使用贝叶斯结构方程模型,在控制基线抑郁的情况下,焦虑症状能显著正向预测48个月后的抑郁症状。此外,感知到的情感社会支持显著中介了焦虑症状与后期抑郁症状之间的关系,即焦虑症状显著负向预测后期的情感社会支持,而情感社会支持显著负向预测后期的抑郁症状。同样,在控制基线焦虑的情况下,抑郁症状正向预测48个月后的焦虑症状。然而,低情感社会支持未能中介这种关系。
低感知情感社会支持可能是丧亲个体焦虑症状预测48个月后抑郁症状的一种机制。