Utility of the Mild Brain Injury Atypical Symptoms Scale as a Screening Measure for Symptom Over-Reporting in Operation Enduring Freedom/Operation Iraqi Freedom Service Members with Post-Concussive Complaints
Utility of the Mild Brain Injury Atypical Symptoms Scale as a Screening Measure for Symptom Over-Reporting in Operation Enduring Freedom/Operation Iraqi Freedom Service Members with Post-Concussive Complaints
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DOI：
10.1093/arclin/acr070
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发表时间：
2011-12-01
影响因子：
2.6
通讯作者：
Bowles, Amy O.
中科院分区：
文献类型：
--
作者：
Cooper, Douglas B.;Nelson, Lonnie;Bowles, Amy O.
对部署后状况（如脑震荡后综合征（PCS）和创伤后应激障碍（PTSD））的评价通常依赖于简短的自我报告检查表，这些检查表是有效的，并且非常容易受到潜在症状有效性问题（如症状夸大）的影响。我们调查了在一个大型军事医疗中心的脑损伤诊所就诊的403名患者的样本中，嵌入常用的PCS和PTSD筛查工具的症状夸大（轻度脑损伤非典型症状[mBIAS]量表）的5项测量的心理测量学特性。探索性因素分析，检查创伤后应激，脑震荡后症状，症状过度报告的措施，揭示了一个6因素模型与mBIAS量表项目代表一个独特的因素。心理测量学特性分析表明，mBIAS评分为8分是检测症状过度报告的最佳评分（灵敏度= 0.94，特异性= 0.92），似乎是解释使用的最有利评分。这些发现为在部署后人群中使用mBIAS提供了强有力的初步支持。
Evaluation of post-deployment conditions such as post-concussive syndrome (PCS) and posttraumatic stress disorder (PTSD) frequently relies upon brief, self-report checklists which are face valid and highly susceptible to potential symptom validity issues such as symptom exaggeration. We investigated the psychometric prope1rties of a 5-item measure of symptom exaggeration (mild brain injury atypical symptoms [mBIAS] scale) embedded in commonly used PCS and PTSD screening instruments in a sample of 403 patients seen in a brain injury clinic at a large military medical center. Exploratory factor analysis, examining measures of posttraumatic stress, post-concussive symptoms, and symptom over-reporting revealed a 6-factor model with the mBIAS scale items representing a unique factor. Analysis of psychometric properties demonstrated that a score of 8 on the mBIAS was optimal for the detection of symptom over-reporting (sensitivity = 0.94, specificity = 0.92) and appears to be the most favorable cut score for interpretive use. The findings provide a strong initial support for the use of the mBIAS in post-deployment populations.