Evaluation of a preliminary physical function item bank supported the expected advantages of the Patient-Reported Outcomes Measurement Information System (PROMIS)
Evaluation of a preliminary physical function item bank supported the expected advantages of the Patient-Reported Outcomes Measurement Information System (PROMIS)
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DOI：
10.1016/j.jclinepi.2006.06.025
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发表时间：
2008-01-01
影响因子：
7.2
通讯作者：
Ware, J. E.
中科院分区：
文献类型：
--
作者：
Rose, M.;Bjomer, J. B.;Ware, J. E.
目的：启动了患者报告结局测量信息系统（PROMIS），以提高准确性，减少应答者负担，并增强健康结局测量的可比性。我们使用项目反应理论（IRT）构建和评估一个初步的项目库，假设四个subdomain.Study设计和设置：数据来自七个样本（N = 17,726），使用136个项目，从9份问卷进行了评估。使用广义部分信用模型估计项目参数，美国人群的平均值为50（SD = 10）。通过计算机化自适应测验（CAT）simulation.Results：70个项目，涵盖日常生活活动，下肢，和中心体功能的IRT要求进行了评估的项目库属性。原始项目背景部分影响参数稳定性。上半身功能和需要帮助或设备的项目不符合IRT模型。在模拟中，10项CAT消除了地板效应，降低了天花板效应，实现了较小的标准误差（美国代表性样本为0.95）。这种精度是没有实现在一个类似的范围内由任何可比的固定长度itemsets.Conclusion：PROMIS项目的方法有可能大大提高物理功能的措施，并提高其管理使用CAT的效率。（C）2008爱思唯尔公司。All rights reserved.
Objective: The Patient-Reported Outcomes Measurement Information System (PROMIS) was initiated to improve precision, reduce respondent burden, and enhance the comparability of health outcomes measures. We used item response theory (IRT) to construct and evaluate a preliminary item bank for physical function assuming four subdomains.Study Design and Setting: Data from seven samples (N = 17,726) using 136 items from nine questionnaires were evaluated. A generalized partial credit model was used to estimate item parameters, which were normed to a mean of 50 (SD = 10) in the US population. Item bank properties were evaluated through Computerized Adaptive Test (CAT) simulations.Results: IRT requirements were fulfilled by 70 items covering activities of daily living, lower extremity, and central body functions. The original item context partly affected parameter stability. Items on upper body function, and need for aid or devices did not fit the IRT model. In simulations, a 10-item CAT eliminated floor and decreased ceiling effects, achieving a small standard error (0.95 for a representative US sample). This precision was not achieved over a similar range by any comparable fixed length item sets.Conclusion: The methods of the PROMIS project are likely to substantially improve measures of physical function and to increase the efficiency of their administration using CAT. (C) 2008 Elsevier Inc. All rights reserved.