Durante Angela, Vellone Ercole, Younas Ahtisham, Juarez-Vela Raul, Boyne Josiane, Piredda Michela, De Maria Maddalena
Department of Nursing, University of La Rioja, Logroño, Spain.
Biomedicine and Prevention Department, University of Rome 'Tor Vergata', Via Montpellier, 1, 00133 Rome, Italy.
Eur J Cardiovasc Nurs. 2024 Jul 19;23(5):540-548. doi: 10.1093/eurjcn/zvad117.
This study aims to (i) test the validity and reliability of the Care Dependency Scale (CDS) for patients with heart failure (HF) and (ii) test the validity and reliability of the proxy version of the CDS assessing informal caregivers' perception of the dependency level of individuals with HF.
Secondary data analysis was conducted of transnational multicentre cross-sectional design study. A convenience sample comprised of HF patients-informal caregivers' dyads in three European countries. The CDS was administered to patients and the proxy version to informal caregivers. Factorial validity was tested for each scale using confirmatory factor analysis. Reliability was evaluated with the composite coefficient and Cronbach's alpha. Construct validity was tested via known group differences. Measurement error was tested to assess responsiveness to changes. A total of 229 patients and 208 caregivers were recruited. Confirmatory factor analysis supported the two-factor structure (Physical Care Dependency and Psychosocial Care Dependency) of the CDS in both HF patients and their caregiver. Reliability estimates were adequate for all reliability coefficients. Construct validity was supported. The measurement error was adequate.
The scale shows acceptable validity and reliability and can be useful for care dependency assessment of patients with HF and their informal caregivers. Further research is needed for assessing the validity and reliability in other cross-cultural settings. The use of the CDS has the potential to effectively enable the development of pertinent care plans, taking dependency into consideration including the perspective of both members of the dyad as a whole.
本研究旨在（i）检验心力衰竭（HF）患者护理依赖量表（CDS）的有效性和可靠性，以及（ii）检验评估非正式照料者对HF患者依赖程度认知的CDS代理版本的有效性和可靠性。
对跨国多中心横断面设计研究进行二次数据分析。便利样本由三个欧洲国家的HF患者-非正式照料者二元组组成。对患者使用CDS，对非正式照料者使用代理版本。使用验证性因子分析对每个量表进行因子效度检验。用综合系数和克朗巴哈系数评估信度。通过已知组差异检验结构效度。检验测量误差以评估对变化的反应性。共招募了229名患者和208名照料者。验证性因子分析支持HF患者及其照料者中CDS的双因素结构（身体护理依赖和心理社会护理依赖）。所有信度系数的信度估计都足够。支持结构效度。测量误差是足够的。
该量表显示出可接受的有效性和可靠性，可用于HF患者及其非正式照料者的护理依赖评估。需要进一步研究以评估在其他跨文化背景下的有效性和可靠性。使用CDS有可能有效地制定相关护理计划，将依赖纳入考虑，包括二元组双方的观点。
