照顾者对心力衰竭自我护理贡献量表的效度和信度。

Validity and reliability of the caregiver contribution to self-care of heart failure index.

机构信息

School of Nursing, University Tor Vergata, Rome, Italy.

出版信息

J Cardiovasc Nurs. 2013 May-Jun;28(3):245-55. doi: 10.1097/JCN.0b013e318256385e.

DOI:10.1097/JCN.0b013e318256385e

PMID:22760172

Abstract

BACKGROUND

Caregivers make an important contribution to the self-care of patients with heart failure (HF), but few instruments are available to measure this contribution.

OBJECTIVE

The objective of this study was to test the psychometric properties of the Caregiver Contribution to Self-care of Heart Failure Index (CC-SCHFI), an instrument derived from the Self-care of Heart Failure Index version 6.2. The CC-SCHFI measures the contribution of caregivers to the self-care maintenance and self-care management of HF patients, as well as their confidence in their ability to contribute to the patients' HF self-care.

METHODS

A cross-sectional design was used to study 291 Italian caregivers whose HF patients were cared for in 17 cardiovascular centers across Italy. Caregivers completed the CC-SCHFI and a sociodemographic questionnaire. Caregivers were retested on the CC-SCHFI 2 weeks later to assess test-retest reliability.

RESULTS

Most caregivers were women (66%) with a mean age of 59 years. First- and second-order confirmatory factor analysis (CFA) for each CC-SCHFI scale showed good model fit: χ2 = 37.22, P = .08, Comparative Fit Index (CFI) = 0.97, Non-Normed Fit Index (NNFI) = 0.96 for caregiver contribution to self-care maintenance (second-order CFA); χ2 = 14.05, P = .12, CFI = 0.96, NNFI = 0.93 for caregiver contribution to self-care management (first-order CFA); and χ2 = 10.63, P = .15, CFI = 0.99, NNFI = 0.98 for caregiver confidence in contributing to self-care (second-order CFA). The CC-SCHFI was able to discriminate statistical and clinical differences between 2 groups of caregivers who had received or not received HF self-care education. Internal consistency reliability measured by factor score determinacy was more than .80 for all factors and scales except for 1 factor in the caregiver contribution to self-care management scale (.65). Test-retest reliability computed by intraclass correlation coefficient was high (>0.90) for most factors and scales.

CONCLUSION

The CC-SCHFI showed good psychometric properties of validity and reliability and can be used to measure the contribution of caregiver to HF patient self-care.

摘要

背景

照护者对心力衰竭（HF）患者的自我护理做出了重要贡献，但目前可用的测量工具却很少。

目的

本研究旨在检验源自心力衰竭自我护理量表 6.2 版的照护者对心力衰竭自我护理贡献量表（CC-SCHFI）的心理测量学特性。CC-SCHFI 用于测量照护者对 HF 患者自我护理维持和自我护理管理的贡献，以及他们对自身帮助 HF 患者进行自我护理的能力的信心。

方法

采用横断面设计，研究了 291 名意大利照护者，他们的 HF 患者在意大利 17 个心血管中心接受护理。照护者完成了 CC-SCHFI 和一份社会人口学问卷。2 周后，照护者对 CC-SCHFI 进行重测，以评估测试-重测信度。

结果

大多数照护者为女性（66%），平均年龄为 59 岁。CC-SCHFI 各量表的一阶和二阶验证性因子分析（CFA）均显示出良好的模型拟合度：χ2=37.22，P=.08，比较拟合指数（CFI）=0.97，非规范拟合指数（NNFI）=0.96，用于自我护理维持的照护者贡献（二阶 CFA）；χ2=14.05，P=.12，CFI=0.96，NNFI=0.93，用于自我护理管理的照护者贡献（一阶 CFA）；χ2=10.63，P=.15，CFI=0.99，NNFI=0.98，用于照护者对自我护理贡献的信心（二阶 CFA）。CC-SCHFI 能够区分接受和未接受 HF 自我护理教育的两组照护者之间的统计学和临床差异。除自我护理管理量表中 1 个因子（照护者贡献）外（.65），所有因子和量表的因子得分确定性的内部一致性可靠性均超过 0.80。通过组内相关系数计算的测试-重测可靠性大多较高（>0.90）。