Validity and measurement precision of the PROMIS physical function item bank and a content validity-driven 20-item short form in rheumatoid arthritis compared with traditional measures
Validity and measurement precision of the PROMIS physical function item bank and a content validity-driven 20-item short form in rheumatoid arthritis compared with traditional measures
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DOI：
10.1093/rheumatology/kev265
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发表时间：
2015-12-01
期刊：
影响因子：
5.5
通讯作者：
van de Laar, Mart A. F. J.
中科院分区：
文献类型：
--
作者：
Voshaar, Martijn A. H. Oude;ten Klooster, Peter M.;van de Laar, Mart A. F. J.
Objective.比较RA患者自报结局测量信息系统（PROMIS）身体功能条目库和20项简式量表与HAQ残疾指数（HAQ-DI）和36项简式健康调查表（SF-36）身体功能量表（PF-10）的内容效度和测量特性。通过将其项目与国际功能、残疾和健康分类（ICF）RA核心集相关联，评估了工具的内容效度。这些措施被管理到690 RA患者在荷兰风湿性关节炎监测登记。测量精度采用项目反应理论方法进行评估，结构效度通过将身体功能评分与其他临床和患者报告的结局指标相关联进行评估。身体功能测量中确定的所有207个健康概念都涉及ICF中的活动。26个ICF RA核心集领域中有23个在PROMIS物理功能项目库中有特色，而HAQ-DI和PF-10分别为13个和8个。正如假设的那样，所有三种身体功能工具高度相关（r 0.74-0.84），与疾病活动性测量中度相关（r 0.44-0.63），与年龄弱相关（rs 0.07-0.14）。项目反应理论分析表明，PROMIS躯体功能简表的20个项目比HAQ-DI和PF-10的躯体功能水平覆盖范围更广。PROMIS物理功能试题库在RA中表现出良好的测量性能。内容驱动的20项简表可能是评估RA身体功能的有用工具。
Objective. To evaluate the content validity and measurement properties of the Patient-Reported Outcome Measurement Information System (PROMIS) physical function item bank and a 20-item short form in patients with RA in comparison with the HAQ disability index (HAQ-DI) and 36-item Short Form Health Survey (SF-36) physical functioning scale (PF-10).Methods. The content validity of the instruments was evaluated by linking their items to the International Classification of Functioning, Disability and Health (ICF) core set for RA. The measures were administered to 690 RA patients enrolled in the Dutch Rheumatoid Arthritis Monitoring registry. Measurement precision was evaluated using item response theory methods and construct validity was evaluated by correlating physical function scores with other clinical and patient-reported outcome measures.Results. All 207 health concepts identified in the physical function measures referred to activities that are featured in the ICF. Twenty-three of 26 ICF RA core set domains are featured in the full PROMIS physical function item bank compared with 13 and 8 for the HAQ-DI and PF-10, respectively. As hypothesized, all three physical function instruments were highly intercorrelated (r 0.74-0.84), moderately correlated with disease activity measures (r 0.44-0.63) and weakly correlated with age (rs 0.07-0.14). Item response theory-based analysis revealed that a 20-item PROMIS physical function short form covered a wider range of physical function levels than the HAQ-DI or PF-10.Conclusion. The PROMIS physical function item bank demonstrated excellent measurement properties in RA. A content-driven 20-item short form may be a useful tool for assessing physical function in RA.