Research Department, Providence VA Medical Center, Providence, Rhode Island; Health Services, Policy and Practice, Brown University, Providence, Rhode Island.
Research Department, Providence VA Medical Center, Providence, Rhode Island.
Arch Phys Med Rehabil. 2022 Dec;103(12):2316-2324. doi: 10.1016/j.apmr.2022.05.008. Epub 2022 Jun 12.
To (1) modify the Orthotics and Prosthetics User Survey (OPUS) Client Satisfaction with Device (CSD) instrument to incorporate issues of concern to women and (2) evaluate measure's structural and concurrent validity and reliability in persons with upper limb amputation (ULA).
Cross-sectional survey study with retest after 2 weeks. Exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and Rasch analyses were used to select items and examine differential item functioning, range of coverage, and person and item reliability. Test-retest reliability was evaluated with intraclass correlation coefficients. Pearson correlations were used to estimate associations with other prosthesis satisfaction measures.
Telephone administered survey.
Convenience sample of 468 participants in the US (N=468; 19.9% women) with ULA, including a 50-person retest subsample (4% female).
Not applicable.
Modified OPUS CSD.
EFA suggested 3 subscales: Comfort, Appearance, and Utility. CFA found acceptable model fit. After dropping items with poor fit and high pairwise correlations in Rasch partial credit models, CFA model fit indices were acceptable (comparative fit index=0.959, Tucker-Lewis Index=0.954, root mean square error of approximation=0.082). Rasch person reliability was 0.62 (Utility), 0.77 (Appearance), and 0.82 (Comfort). Cronbach α was 0.81, 87, and 0.71 for Comfort and Appearance, and Utility subscales, respectively. Correlations between the modified CSD, the original CSD, and the Trinity Amputation and Prosthesis Experience Satisfaction Scale were 0.54-0.94.
We identified 3 subscales: Comfort (6 items), Appearance (8 items), and Utility (4 items) with 7 new items identified as important to women. The subscales demonstrate evidence of sound concurrent structural and test-retest reliability and concurrent validity. The Appearance and Comfort subscales have good reliability for group-level use in clinical and research applications, whereas the Utility subscale had poor to fair person reliability but excellent item reliability.
（1）修改矫形器和假肢用户调查（OPUS）客户对设备的满意度（CSD）量表，纳入女性关注的问题；（2）评估该量表在上肢截肢患者中的结构和同时效度和信度。
横断面调查研究，2 周后进行复测。采用探索性因子分析（EFA）、验证性因子分析（CFA）和 Rasch 分析来选择项目，并检查差异项目功能、覆盖范围以及人员和项目的可靠性。采用组内相关系数评估重测信度。Pearson 相关用于估计与其他假体满意度测量的关联。
电话管理调查。
美国 468 名上肢截肢患者的便利样本（N=468；19.9%为女性），包括 50 人的复测亚样本（4%为女性）。
无。
改良的 OPUS CSD。
EFA 提示有 3 个分量表：舒适度、外观和实用性。CFA 发现模型拟合良好。在 Rasch 部分信用模型中，删除拟合不良和高度两两相关的项目后，CFA 模型拟合指数可接受（比较拟合指数=0.959，Tucker-Lewis 指数=0.954，均方根误差逼近值=0.082）。Rasch 人员可靠性为 0.62（实用性）、0.77（外观）和 0.82（舒适度）。舒适度和外观分量表的 Cronbach α 分别为 0.81、0.87 和 0.71，实用性分量表为 0.71。改良后的 CSD 与原始 CSD 以及 Trinity 截肢和假肢体验满意度量表之间的相关性为 0.54-0.94。
我们确定了 3 个分量表：舒适度（6 项）、外观（8 项）和实用性（4 项），并确定了 7 项新的对女性重要的项目。这些分量表在结构和同时效度和重测信度方面具有良好的证据。外观和舒适度分量表在临床和研究应用中的群体水平上具有良好的可靠性，而实用性分量表的人员可靠性较差，但项目可靠性良好。
