Ware J E, Kosinski M, Gandek B, Aaronson N K, Apolone G, Bech P, Brazier J, Bullinger M, Kaasa S, Leplège A, Prieto L, Sullivan M
Health Assessment Lab at the Health Institute, New England Medical Center, Boston, Massachusetts 02111, USA.
J Clin Epidemiol. 1998 Nov;51(11):1159-65. doi: 10.1016/s0895-4356(98)00107-3.
Studies of the factor structure of the SF-36 Health Survey are an important step in its construct validation. Its structure is also the psychometric basis for scoring physical and mental health summary scales, which are proving useful in simplifying and interpreting statistical analyses. To test the generalizability of the SF-36 factor structure, product-moment correlations among the eight SF-36 Health Survey scales were estimated for representative samples of general populations in each of 10 countries. Matrices were independently factor analyzed using identical methods to test for hypothesized physical and mental health components, and results were compared with those published for the United States. Following simple orthogonal rotation of two principal components, they were easily interpreted as dimensions of physical and mental health in all countries. These components accounted for 76% to 85% of the reliable variance in scale scores across nine European countries, in comparison with 82% in the United States. Similar patterns of correlations between the eight scales and the components were observed across all countries and across age and gender subgroups within each country. Correlations with the physical component were highest (0.64 to 0.86) for the Physical Functioning, Role Physical, and Bodily Pain scales, whereas the Mental Health, Role Emotional, and Social Functioning scales correlated highest (0.62 to 0.91) with the mental component. Secondary correlations for both clusters of scales were much lower. Scales measuring General Health and Vitality correlated moderately with both physical and mental health components. These results support the construct validity of the SF-36 translations and the scoring of physical and mental health components in all countries studied.
对SF-36健康调查的因子结构进行研究是其结构效度验证的重要一步。其结构也是对生理和心理健康综合量表进行计分的心理测量基础，事实证明这有助于简化和解释统计分析。为了检验SF-36因子结构的普遍性，对10个国家中每个国家具有代表性的普通人群样本，估算了SF-36健康调查8个量表之间的积差相关系数。使用相同方法对矩阵进行独立因子分析，以检验假设的生理和心理健康成分，并将结果与美国公布的结果进行比较。在对两个主成分进行简单正交旋转之后，它们很容易被解释为所有国家生理和心理健康的维度。在9个欧洲国家，这些成分占量表分数可靠方差的76%至85%，而在美国这一比例为82%。在所有国家以及每个国家内的年龄和性别亚组中，均观察到8个量表与这些成分之间存在相似的相关模式。身体功能、身体角色和身体疼痛量表与生理成分的相关性最高（0.64至0.86），而心理健康、情绪角色和社会功能量表与心理成分的相关性最高（0.62至0.91）。两组量表的二级相关性则低得多。测量总体健康和活力的量表与生理和心理健康成分的相关性中等。这些结果支持了SF-36各译本的结构效度以及所有研究国家中生理和心理健康成分的计分。
