Graduate Program in Health Sciences: Cardiology and Cardiovascular Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, Porto Alegre, RS 90035-003, Brazil.
Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy.
Heart Lung. 2020 Sep-Oct;49(5):518-523. doi: 10.1016/j.hrtlng.2020.02.048. Epub 2020 Mar 16.
Poor self-care in patients with hypertension is associated with worse patient outcomes. The Self-Care of Hypertension Inventory (SC-HI) measures self-care in patients with hypertension and includes three scales: self-care maintenance, which measures adherence to prescribed treatments and behaviors; self-care management, which evaluates the responses to signs and symptoms of high blood pressure; and self-care confidence, which measures self-efficacy in dealing with the entire process.
To test the psychometric characteristics of the Brazilian version of the SC-HI.
We enrolled a sample of 360 patients with hypertension and performed confirmatory factor analysis (CFA) and exploratory factor analysis (EFA) to test the factorial structure of the SC-HI and computed the factor score determinacy coefficient to evaluate the SC-HI internal consistency reliability.
The sample was predominantly female (65%), mean age of 65 years (SD = 10), white (70%). The self-care maintenance scale resulted in a unidimensional scale, with supportive fit indices (CFI = 0.901, RMSEA = 0.048); the self-care management did not reflect the original factorial structure and had unsupportive fit indices. EFA showed a different factorial solution in reference to the original study. Finally, the self-care confidence scale resulted in a unidimensional scale with supportive fit indices (CFI = 0.940, RMSEA = 0.093). The reliability of the self-care maintenance, management, and confidence scales resulted in factor score determinacy coefficients of 0.83, 0.78, and 0.97 respectively.
This study shows that the SC-HI is a valid and reliable tool to measure self-care in patients with hypertension among the Brazilian population.
高血压患者自我护理不良与患者预后较差有关。《高血压自我护理量表》（SC-HI）衡量高血压患者的自我护理，包括三个量表：自我护理维持，衡量对规定治疗和行为的依从性；自我护理管理，评估对高血压体征和症状的反应；自我护理信心，衡量应对整个过程的自我效能。
检验巴西版 SC-HI 的心理测量学特征。
我们纳入了 360 名高血压患者的样本，进行验证性因子分析（CFA）和探索性因子分析（EFA），以检验 SC-HI 的因子结构，并计算因子得分确定性系数，以评估 SC-HI 的内部一致性可靠性。
样本主要为女性（65%），平均年龄 65 岁（标准差=10），白人（70%）。自我护理维持量表呈现出一个单维度的量表，具有支持性的拟合指数（CFI=0.901，RMSEA=0.048）；自我护理管理未能反映原有的因子结构，拟合指数不支持。EFA 显示出与原始研究不同的因子解决方案。最后，自我护理信心量表呈现出一个单维度的量表，具有支持性的拟合指数（CFI=0.940，RMSEA=0.093）。自我护理维持、管理和信心量表的可靠性产生了 0.83、0.78 和 0.97 的因子得分确定性系数。
本研究表明，SC-HI 是一种有效且可靠的工具，可用于衡量巴西人群中高血压患者的自我护理。
