Department of Neurology, Walton Centre for Neurology and Neurosurgery, L9 7LJ Liverpool, United Kingdom.
J Rehabil Med. 2013 Sep;45(9):873-80. doi: 10.2340/16501977-1186.
The World Health Organisation quality of life abbreviated scale (WHOQOL-BREF) was developed as a measure of quality of life across 4 separate health domains; physical health, psychological, social relationships and environment. This study evaluated the validity of the WHOQOL-BREF in post-polio syndrome by testing it for fit against the Rasch model.
The scale was posted to 319 volunteers, 271 (85%) completed the scale with a mean age of 66.7 years (standard deviation 8.15); 64% were female. The social relationships domain fitted the Rasch model (χ2 p = 0.19) but reliability was low (α = 0.69) and there were insufficient items to test the assumption of unidimensionality. Solutions were derived for physical health (p = 0.45, t-test = 1.5%, α = 0.67), psychological (p = 0.19, t-test = 4.9%, α = 0.78) and environment domains (p = 0.48, t-test = 6.0% - lower confidence interval 3.4%, α = 0.80) by accounting for local dependence and to cancel out differential item functioning. An overall measure of quality of life, which combined all 4 domains was validated (p = 0.80, t-test = 4.6%, α = 0.81). A transformation table for this total score is provided.
The 4 domains of the WHOQOL-BREF provide valid measures of quality of life in post-polio syndrome. The summed score was more reliable and better targeted and can be used as an ordinal estimate of quality of life.
世界卫生组织生活质量简表（WHOQOL-BREF）是作为衡量 4 个独立健康领域生活质量的指标而开发的；身体健康、心理、社会关系和环境。本研究通过测试其与 Rasch 模型的拟合度，评估其在脊髓灰质炎后综合征中的有效性。
量表寄给了 319 名志愿者，271 名（85%）完成了量表，平均年龄为 66.7 岁（标准差为 8.15）；64%为女性。社会关系领域符合 Rasch 模型（χ2 p = 0.19），但可靠性较低（α = 0.69），并且没有足够的项目来检验单维性的假设。通过考虑局部依赖性和消除差异项目功能，为身体健康（p = 0.45，t 检验 = 1.5%，α = 0.67）、心理（p = 0.19，t 检验 = 4.9%，α = 0.78）和环境领域（p = 0.48，t 检验 = 6.0% - 置信区间下限 3.4%，α = 0.80）得出了解决方案。通过合并所有 4 个领域，验证了一个整体的生活质量衡量标准（p = 0.80，t 检验 = 4.6%，α = 0.81）。提供了这个总分的转换表。
WHOQOL-BREF 的 4 个领域为脊髓灰质炎后综合征提供了有效的生活质量衡量标准。总和得分更可靠、更有针对性，可以作为生活质量的有序估计。
