Utility of the Mayo-Portland Adaptability Inventory-4 for Self-Reported Outcomes in a Military Sample With Traumatic Brain Injury

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• 作者：Jacob Kean ; PhD ; CCC-SLP^a ; ^b ; ^c ; ^{jacob.kean@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; James F. Malec ; PhD ; ABPP-Cn ; Rp^c ; ^d ; Douglas B. Cooper ; PhD ; ABPP-Cn^e ; Amy O. Bowles ; MD^f
• 关键词：Brain injuries ; Military personnel ; Outcome assessment (health care) ; Outcome and process assessment (health care) ; Psychometrics ; Rehabilitation
• 刊名：Archives of Physical Medicine and Rehabilitation
• 出版年：2013
• 出版时间：December 2013
• 年：2013
• 卷：94
• 期：12
• 页码：2417-2424
• 全文大小：667 K

文摘

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).

Design

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.

Setting

Medical center.

Participants

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.

Interventions

Not applicable.

Main Outcome Measure

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.

Conclusions

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.