a Department of Physical Medicine and Rehabilitation , Baylor College of Medicine and Harris Health System , Houston , TX , USA.
b Brain Injury Research Center , Houston , TX , USA.
Clin Neuropsychol. 2018 Apr;32(3):495-509. doi: 10.1080/13854046.2017.1368714. Epub 2017 Aug 29.
To investigate the factor structure of the Everyday Memory Questionnaire (EMQ) in persons with traumatic brain injury (TBI).
This was a secondary analysis of baseline data from two clinical trials targeting memory impairment after TBI. Participants were 169 persons with complicated mild, moderate, or severe TBI at an average of 41 months post-injury. They completed the EMQ via clinical interview. Exploratory factor analysis was conducted using a three-factor principal axis factoring estimation method with a polychoric correlation matrix and oblique rotation.
The three factors accounted for 49.2% of the variance, with moderate correlations observed among the factors. The three factors appeared to represent general everyday memory (prospective and episodic), conversational memory, and spatial or action memory. The three factors added significantly to the variance in age-corrected objective learning test scores predicted by injury severity, education, and sex.
The three factors of the EMQ are consistent with the heterogeneity of memory impairments observed after TBI. The factor scores may be used to target treatments for impaired memory and to evaluate their effectiveness.
探讨创伤性脑损伤（TBI）患者日常记忆问卷（EMQ）的因子结构。
这是两项针对 TBI 后记忆障碍的临床试验基线数据的二次分析。参与者为 169 名复杂性轻度、中度或重度 TBI 患者，平均受伤后 41 个月。他们通过临床访谈完成 EMQ。使用具有偏斜旋转的三因子主轴因子分析估计方法，对多元相关矩阵进行探索性因子分析。
三个因子解释了 49.2%的方差，因子之间存在中等相关性。这三个因子似乎代表了一般的日常记忆（前瞻性和情景性）、会话记忆以及空间或动作记忆。这三个因子显著增加了损伤严重程度、教育和性别预测的年龄校正客观学习测试分数的方差。
EMQ 的三个因子与 TBI 后观察到的记忆障碍的异质性一致。因子得分可用于针对受损记忆进行治疗，并评估其疗效。
