Chang Feng-Hang, Chen Chih-Yi, Liang Wen-Miin, Lin Mau-Roung
Institute of Injury Prevention and Control (Drs Chang and Lin and Ms Chen) and Master Program in Long-Term Care (Dr Lin), Taipei Medical University, Taipei, Taiwan; and Graduate Institute of Biostatistics, China Medical University, Taichung, Taiwan (Dr Liang).
J Head Trauma Rehabil. 2017 Jul/Aug;32(4):E11-E18. doi: 10.1097/HTR.0000000000000258.
The Quality of Life after Brain Injury (QOLIBRI), a cross-cultural instrument, has been validated in several languages; however, traditional psychometric approaches have critical limitations. Therefore, we applied the Rasch model for validating the 37-item QOLIBRI scale among a Chinese population with traumatic brain injury.
In total, 587 participants (mean age: 44.2 ± 15.4 years; women, 46.3%) were surveyed in neurosurgery departments at 6 hospitals in Taipei, Taiwan.
The QOLIBRI.
Of the 6 subscales of the QOLIBRI, 4 (cognition, self, daily life and autonomy, and social relationships) were unidimensional, valid, and reliable, whereas the remaining 2 (emotions and physical problems) exhibited poor unidimensionality, item and person reliability, and person-item targeting. Five items (energy, concentrating, getting out and about, sex life, and achievements) showed considerable differential item functioning among age groups, disability levels, and time since traumatic brain injury.
According to item response theory, we identified psychometric issues in the emotions and physical problems subscales of the QOLIBRI as well as several differential item functioning items. Future research is required to determine whether similar results are observed in other language versions of the QOLIBRI or in other countries.
脑损伤后生活质量量表（QOLIBRI）是一种跨文化工具，已在多种语言中得到验证；然而，传统的心理测量方法存在严重局限性。因此，我们应用拉施模型在台湾台北市6家医院的神经外科对37项QOLIBRI量表在创伤性脑损伤的中国人群中进行验证。
总共对587名参与者（平均年龄：44.2±15.4岁；女性占46.3%）在台湾台北市6家医院的神经外科进行了调查。
QOLIBRI。
在QOLIBRI的6个分量表中，4个（认知、自我、日常生活与自主性以及社会关系）是单维的、有效的且可靠的，而其余2个（情绪和身体问题）表现出较差的单维性、项目和人员可靠性以及人员-项目匹配度。5个项目（精力、注意力集中、外出活动、性生活和成就）在年龄组、残疾水平以及创伤性脑损伤后的时间方面存在显著的项目功能差异。
根据项目反应理论，我们在QOLIBRI的情绪和身体问题分量表中发现了心理测量问题以及几个项目功能差异项目。未来需要进行研究以确定在QOLIBRI的其他语言版本或其他国家是否会观察到类似结果。
