School of Public Health and Psychosocial Studies, Auckland University of Technology, Auckland, New Zealand.
School of Psychology, University of Waikato, Hamilton, New Zealand.
Arch Phys Med Rehabil. 2019 Oct;100(10):1853-1862. doi: 10.1016/j.apmr.2019.05.029. Epub 2019 Jun 21.
To use Rasch analysis to validate the World Health Organization Quality of Life-BREF (WHOQOL-BREF) and existing short versions in individuals with traumatic brain injury and orthopedic injuries, with comparisons to a general population group.
The Partial Credit Rasch model was applied to evaluate the WHOQOL-BREF as well as shortened versions using a cross-sectional study design.
Regional hospital, and national electoral sample in New Zealand.
Individuals with traumatic brain injury (n=74), individuals with orthopedic injuries (n=114), general population (n=140).
None.
WHOQOL-BREF.
The WHOQOL-BREF met expectations of the unidimensional Rasch model and demonstrated good reliability (person separation index [PSI] =0.82) when domain items were combined into physical-psychological, social, and environmental superitems. Analysis of shorter versions, the EUROHIS-QOL-8 and World Health Organization Quality of Life-5 (WHOQOL-5), indicated overall acceptable fit to the Rasch model and evidence of unidimensionality. The EUROHIS-QOL-8 showed good reliability (PSI=0.81); however, reliability of the WHOQOL-5 (PSI=0.68) was below acceptable standards for group comparisons, in addition to demonstrating poor person-item targeting.
The WHOQOL-BREF and the 8-item EUROHIS-QOL-8 version are both reliable and valid in the assessment of quality of life in both injury and general populations. Ordinal-interval conversion tables published for these validated scales as well as for the WHOQOL-5 can be used to improve precision of assessment. The transformation of ordinal scale scores into an interval measure of health-related quality of life also permits the calculation of a single summary score for the WHOQOL-BREF, which will be useful in a wide range of clinical and research contexts. Further validation work of the WHOQOL-5 is needed to ascertain its psychometric properties.
使用 RASCH 分析来验证世界卫生组织生活质量简表（WHOQOL-BREF）以及现有的创伤性脑损伤和骨科损伤的简短版本，并与一般人群进行比较。
应用部分信用 RASCH 模型，采用横断面研究设计，评估 WHOQOL-BREF 以及缩短版本。
新西兰地区医院和全国选举样本。
创伤性脑损伤患者（n=74）、骨科损伤患者（n=114）、一般人群（n=140）。
无。
WHOQOL-BREF。
当将域项目组合成身体-心理、社会和环境的超级项目时，WHOQOL-BREF 符合单维 RASCH 模型的预期，并表现出良好的可靠性（人员分离指数[PSI]=0.82）。对较短版本的分析，即 EUROHIS-QOL-8 和世界卫生组织生活质量-5（WHOQOL-5），表明整体上符合 RASCH 模型，具有单维性的证据。EUROHIS-QOL-8 表现出良好的可靠性（PSI=0.81）；然而，WHOQOL-5 的可靠性（PSI=0.68）低于团体比较的可接受标准，此外，还表现出较差的人员项目针对性。
WHOQOL-BREF 和 8 项 EUROHIS-QOL-8 版本在评估创伤和一般人群的生活质量方面都是可靠和有效的。这些经过验证的量表以及 WHOQOL-5 的序数量表转换表可用于提高评估的精度。将序数量表得分转换为健康相关生活质量的区间度量，也可以为 WHOQOL-BREF 计算一个单一的综合评分，这在广泛的临床和研究环境中都将是有用的。需要进一步验证 WHOQOL-5 的心理测量特性。
