Abstract：
OBJECTIVE: To explore the mediating role of trait anxious personality in the association between quality of life (QoL) and death anxiety (DA), as well as to test the moderating effect of social support in the mediation model.
METHODS: The Death Anxiety Scale, Quality of Life Scale, State-Trait Anxiety Scale, and Social Support Rating Scale were used to measure 588 family caregivers of advanced cancer patients. We then constructed a moderated mediation model.
RESULTS: The presence of QoL was negatively associated with DA (β = - 0.67, p < 0.01). Trait anxious personality partially mediated the relationship between QoL and DA (indirect effect β = - 0.08, p < 0.01). Social support moderated both the antecedent and subsequent segments of the mediating paths of \"QoL → trait anxious personality → DA\" and the direct relationship between QoL and DA. Among caregivers with a low level of social support, the mediating effect coefficient of trait anxious personality was higher at 0.25 (95% confidence interval (CI): 0.059-0.182), in contrast to caregivers with a high level of social support, where the mediating effect coefficient of trait anxious personality was 0.11 (95% CI: 0.029-0.072).
CONCLUSIONS: QoL is directly associated with an increased risk of DA and indirectly related to DA by increasing the risk of trait anxious personality among caregivers. Social support can moderate the mediating effect of trait anxious personality and the relationship between QoL and DA. The intervention strategy for preventing DA among caregivers who have encountered QoL reduction should focus on reducing trait anxious personality and social support.
METHODS: The Death Anxiety Scale, Quality of Life Scale, State-Trait Anxiety Scale, and Social Support Rating Scale were used to measure 588 family caregivers of advanced cancer patients. We then constructed a moderated mediation model.
RESULTS: The presence of QoL was negatively associated with DA (β = - 0.67, p < 0.01). Trait anxious personality partially mediated the relationship between QoL and DA (indirect effect β = - 0.08, p < 0.01). Social support moderated both the antecedent and subsequent segments of the mediating paths of \"QoL → trait anxious personality → DA\" and the direct relationship between QoL and DA. Among caregivers with a low level of social support, the mediating effect coefficient of trait anxious personality was higher at 0.25 (95% confidence interval (CI): 0.059-0.182), in contrast to caregivers with a high level of social support, where the mediating effect coefficient of trait anxious personality was 0.11 (95% CI: 0.029-0.072).
CONCLUSIONS: QoL is directly associated with an increased risk of DA and indirectly related to DA by increasing the risk of trait anxious personality among caregivers. Social support can moderate the mediating effect of trait anxious personality and the relationship between QoL and DA. The intervention strategy for preventing DA among caregivers who have encountered QoL reduction should focus on reducing trait anxious personality and social support.
摘要：
目的：探讨特质焦虑人格在生存质量(QoL)与死亡焦虑(DA)关系中的中介作用。以及检验社会支持在中介模式中的调节作用。
方法：死亡焦虑量表，生活质量量表,状态-特质焦虑量表,采用社会支持评定量表对588名晚期癌症患者的家庭照顾者进行测量。然后，我们构建了一个适度的调解模型。
结果：QoL的存在与DA呈负相关（β=-0.67，p<0.01）。特质焦虑人格部分介导了QoL与DA之间的关系（间接效应β=-0.08，p<0.01）。社会支持调节了“QoL→特质焦虑人格→DA”的中介路径的前段和后段，以及QoL与DA之间的直接关系。在社会支持水平低的护理人员中，特质焦虑人格的中介效应系数高于0.25（95％置信区间（CI）：0.059-0.182），与拥有高水平社会支持的护理人员相比，其中特质焦虑人格的中介效应系数为0.11（95％CI：0.029-0.072）。
结论：QoL与DA的风险增加直接相关，而与DA的间接相关则是通过增加护理人员的特质焦虑人格风险。社会支持可以调节特质焦虑人格的中介作用以及QoL与DA之间的关系。在遇到QoL减少的护理人员中预防DA的干预策略应侧重于减少特质焦虑人格和社会支持。
方法：死亡焦虑量表，生活质量量表,状态-特质焦虑量表,采用社会支持评定量表对588名晚期癌症患者的家庭照顾者进行测量。然后，我们构建了一个适度的调解模型。
结果：QoL的存在与DA呈负相关（β=-0.67，p<0.01）。特质焦虑人格部分介导了QoL与DA之间的关系（间接效应β=-0.08，p<0.01）。社会支持调节了“QoL→特质焦虑人格→DA”的中介路径的前段和后段，以及QoL与DA之间的直接关系。在社会支持水平低的护理人员中，特质焦虑人格的中介效应系数高于0.25（95％置信区间（CI）：0.059-0.182），与拥有高水平社会支持的护理人员相比，其中特质焦虑人格的中介效应系数为0.11（95％CI：0.029-0.072）。
结论：QoL与DA的风险增加直接相关，而与DA的间接相关则是通过增加护理人员的特质焦虑人格风险。社会支持可以调节特质焦虑人格的中介作用以及QoL与DA之间的关系。在遇到QoL减少的护理人员中预防DA的干预策略应侧重于减少特质焦虑人格和社会支持。
