目的：探讨积极感受在维持性血液透析(MHD)患者家庭照顾者照顾准备度与心理一致感之间的中介效应。方法：便利抽样选取武汉市两家三甲医院MHD患者家庭照顾者237名为研究对象，应用照顾准备度量表、积极感受量表及心理一致感量表进行调查，使用AMOS 24.0建立链式中介模型。结果：MHD患者家庭照顾者照顾准备度得分为(19.05±5.64)分、积极感受得分为(31.28±7.28)分、心理一致感得分为(56.37±11.77)分。家庭照顾者照顾准备度、积极感受与心理一致感均呈正相关(r=0.517、0.562，均P<0.01)；照顾准备度与积极感受呈正相关(r=0.690，P<0.01)。结构方程模型显示积极感受在照顾准备度与心理一致感之间起链式中介效应，总中介效应占总效应的59.17%。结论：照顾准备度对MHD患者家庭照顾者心理一致感有直接预测作用，积极感受在照顾准备度与心理一致感之间起链式中介效应，提高患者的积极体验是提高其心理一致感的有效途径之一。

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