A Brief, 6-Item Scale for Caregiver Grief in Dementia Caregiving
A Brief, 6-Item Scale for Caregiver Grief in Dementia Caregiving
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DOI：
10.1093/geront/gny161
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发表时间：
2020-02-01
期刊：
影响因子：
5.7
通讯作者：
Yap, Philip
中科院分区：
文献类型：
--
作者：
Liew, Tau Ming;Yap, Philip
目的：痴呆症患者（PWD）的护理人员可以在该人死亡之前很久就经历损失和悲伤。虽然这种照顾者悲伤的经历是可以测量的，但现有的量表（如Marwit-Meuser照顾者悲伤量表，MM-CGI）很长，并且与其他照顾者的结构有重叠。我们开发了一个更简短的量表，捕捉了照顾者悲伤的本质，具有与MM-CGI相当的心理测量属性和总分，并且与其他照顾结构的重叠较少。设计与方法：对394名社区残疾家庭照顾者进行问卷调查，问卷内容包括MM-CGI和其他照顾量表。最初，我们将研究样本分成两部分——衍生样本（n = 179）用于开发一个最能预测MM-CGI的简短量表（使用十倍交叉验证的最佳子集方法），而验证样本（n = 215）用于验证其预测MM-CGI的实际性能。随后，我们对导出的量表进行信度和效度评估，并采用等百分位等值法将其得分映射到MM-CGI。结果：导出了一个6项量表，解释了MM-CGI的84.1%的变异性，并且在受试者工作特征曲线下有面积。区分高度照顾者悲伤（95% CI: 0.94 - 0.99）。在验证性因子分析中，其具有单向度（比较拟合指数= 0.98；Tucker-Lewis指数= 0.97），与MM-CGI具有相似的良好心理测量特性，但与照顾者负担和抑郁的相关性较低。它也有分数可以以合理的精度映射到MM-CGI。
Purpose: Caregivers of persons with dementia (PWD) can experience loss and grief long before the death of the person. Although such experience of caregiver grief is measurable, available scales (such as the Marwit-Meuser Caregiver Grief Inventory, MM-CGI) are lengthy and have overlaps with other caregiving constructs. We developed a briefer scale that captures the essence of caregiver grief-with comparable psychometric properties and total score to MM-CGI, as well as less overlap with other caregiving constructs.Design and Methods: Family caregivers of community-dwelling PWD (N = 394) completed questionnaires containing MM-CGI and other caregiving scales. Initially, we split the study samples into two -the derivation sample (n = 179) was used to develop a brief scale that best predicts MM-CGI (using the best-subset approach with tenfold cross-validation), whereas the validation sample (n = 215) verified its actual performance in predicting MM-CGI. Thereafter, we evaluated the derived scale in its reliability and validity, and mapped its scores to MM-CGI using the equipercentile equating method.Results: We derived a 6-item scale, which explained 84.1% of the variability in MM-CGI and had area under the receiver operating characteristic curve of .96 in discriminating high caregiver grief (95% CI: .94-.99). It had single dimension in confirmatory factor analysis (comparative fit index = .98; Tucker-Lewis index = .97) and maintained good psychometric properties similar to those of MM-CGI, while showing lower correlation with caregiver burden and depression. It also had scores that could be mapped to MM-CGI with reasonable precision.