VA Center of Excellence on Implementing Evidence-Based Practice, Richard L. Roudebush VA Medical Center, Indianapolis, IN; Health Services Research Center, Regenstrief Institute, Indianapolis, IN; Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Indianapolis, IN.
Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine, Indianapolis, IN; Rehabilitation Hospital of Indiana, Indianapolis, IN.
Arch Phys Med Rehabil. 2013 Dec;94(12):2417-2424. doi: 10.1016/j.apmr.2013.08.006. Epub 2013 Aug 23.
To investigate the psychometric properties of the Mayo-Portland Adaptability Inventory-4 (MPAI-4) obtained by self-report in a large sample of active duty military personnel with traumatic brain injury (TBI).
Consecutive cohort who completed the MPAI-4 as a part of a larger battery of clinical outcome measures at the time of intake to an outpatient brain injury clinic.
Medical center.
Consecutively referred sample of active duty military personnel (N=404) who suffered predominantly mild (n=355), but also moderate (n=37) and severe (n=12), TBI.
Not applicable.
MPAI-4 RESULTS: Initial factor analysis suggested 2 salient dimensions. In subsequent analysis, the ratio of the first and second eigenvalues (6.84:1) and parallel analysis indicated sufficient unidimensionality in 26 retained items. Iterative Rasch analysis resulted in the rescaling of the measure and the removal of 5 additional items for poor fit. The items of the final 21-item Mayo-Portland Adaptability Inventory-military were locally independent, demonstrated monotonically increasing responses, adequately fit the item response model, and permitted the identification of nearly 5 statistically distinct levels of disability in the study population. Slight mistargeting of the population resulted in the global outcome, as measured by the Mayo-Portland Adaptability Inventory-military, tending to be less reflective of very mild levels of disability.
These data collected in a relatively large sample of active duty service members with TBI provide insight into the ability of patients to self-report functional impairment and the distinct effects of military deployment on outcome, providing important guidance for the meaningful measurement of outcome in this population.
调查在患有创伤性脑损伤 (TBI) 的现役军人中，通过自我报告获得的 Mayo-Portland 适应能力问卷-4（MPAI-4）的心理测量特性。
连续队列，他们在门诊脑损伤诊所就诊时，作为更大的临床结果测量工具包的一部分完成 MPAI-4。
医疗中心。
连续转诊的现役军人样本（N=404），他们主要患有轻度（n=355），但也有中度（n=37）和重度（n=12）TBI。
不适用。
MPAI-4 结果：初步因子分析表明有 2 个明显的维度。在随后的分析中，第一个和第二个特征值的比值（6.84:1）和并行分析表明，在保留的 26 个项目中有足够的单维性。迭代 Rasch 分析导致测量的重新定标和 5 个额外项目的去除，因为这些项目拟合不佳。最终的 21 项 Mayo-Portland 适应能力问卷-军事的项目具有局部独立性，表现出单调递增的反应，适应项目反应模型，并且可以在研究人群中识别近 5 个统计学上不同的残疾水平。人群的轻微目标定位导致 Mayo-Portland 适应能力问卷-军事的总体结果，倾向于不太反映非常轻度的残疾水平。
这些在患有 TBI 的现役军人中收集的相对较大样本中获得的数据提供了有关患者自我报告功能障碍能力的深入了解，以及军事部署对结果的独特影响，为该人群的有意义的结果测量提供了重要指导。
