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Development and psychometric properties of a self-care behaviors scale (SCBS) among patients with rheumatoid arthritis
BMC Rheumatology Pub Date : 2019-06-18 , DOI: 10.1186/s41927-019-0069-4
Haidar Nadrian 1 , Yasna Hosseini Niaz 2 , Zahra Basiri 3 , Ahmad Tahamoli Roudsari 3
Affiliation  

The role of self-care behaviors in promoting physical function, pain management, health status and quality of life among patients with Rheumatoid Arthritis (RA) is well documented. However, there is no valid and reliable instrument in the literature to assess such behaviors among the patients. In the present study, we aimed to develop and assess the psychometric properties of a Self-care Behaviors Scale (SCBS) among patients with RA. In 2017, applying a cross-sectional design, we recruited a convenient sample of 436 RA patients in Hamadan, Iran, to participate in the study. We developed the initial scale, including 30 items, after literature review, and having recommendations from an expert panel. Face, content, construct and convergent validity, as well as reliability of the scale were investigated. In Exploratory Factor Analysis, the optimal solution comprising 25 items and 7 factors was emerged, which explained 62.5% of all variances between the items. In Confirmatory Factor Analysis, the measurement model fit the data well, and all subscales were significant within an acceptable range (χ2 [233] = 428.654, p < 0.0001, comparative fit index = 0.942, normed fit index =0.907, Tucker-Lewis index =0.916, and root mean square error of approximation = 0.043[(0.037–0.05]). The Self-care Behaviors Scale was found with appropriate validity, reliability, functionality and simplicity. To our knowledge, this scale is the only valid and reliable RA specific self-care behavior scale in the literature. Healthcare providers and health practitioners may apply the English version of this suitable instrument to find more valid and reliable data on RA self-care behaviors during primary assessments of the behaviors in educational interventions for the patients.

中文翻译:

类风湿性关节炎患者自我护理行为量表(SCBS)的发展和心理测量特性

自我保健行为在促进类风湿性关节炎 (RA) 患者的身体机能、疼痛管理、健康状况和生活质量方面的作用已得到充分证明。然而,文献中没有有效和可靠的工具来评估患者的这种行为。在本研究中,我们旨在开发和评估 RA 患者自我护理行为量表 (SCBS) 的心理测量特性。2017 年,我们采用横断面设计,在伊朗哈马丹招募了 436 名 RA 患者的便利样本参与研究。在文献回顾和专家小组的建议后,我们制定了最初的量表,包括 30 个项目。调查了量表的面貌、内容、结构和收敛效度,以及信度。在探索性因素分析中,出现了包含 25 个项目和 7 个因素的最优解,它解释了项目之间所有方差的 62.5%。在验证性因素分析中,测量模型很好地拟合了数据,所有分量表在可接受的范围内均显着(χ2 [233] = 428.654,p < 0.0001,比较拟合指数 = 0.942,规范拟合指数 =0.907,Tucker-Lewis 指数=0.916,近似的均方根误差 = 0.043[(0.037–0.05])。自理行为量表具有适当的效度、信度、功能性和简单性。据我们所知,该量表是唯一有效和可靠的量表文献中的 RA 特定自理行为量表。
更新日期:2020-04-22
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