Evidence of validity for the hip outcome score

Evidence of validity for the hip outcome score
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DOI:
10.1016/j.arthro.2006.07.027
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发表时间:
2006-12-01
影响因子:
4.7
通讯作者:
Philippon, Marc J.
Philippon, Marc J.
中科院分区:
医学1区
文献类型:
--
作者:
Martin, RobRoy L.;Kelly, Bryan T.;Philippon, Marc J.

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目的:本研究的目的是提供证据的有效性髋关节结局评分(HOS)的基础上的内部结构,测试内容,以及与其他变量的关系。方法:研究人群包括507例盂唇撕裂患者。内部结构采用因子分析和系数a进行评价。测试内容采用项目反应理论进行评价。皮尔逊相关系数被用来评估简表36和HOS之间的关系。结果:受试者平均年龄为38岁(范围:13 - 66岁),其中男性232例,女性273例。在这些受试者中,263例(52%)接受了关节镜手术。因子分析发现,日常生活活动(ADL)分量表的19个项目中有17个加载了I因子。不符合I因子模型的2个项目从进一步检验中删除。运动分量表上的所有9个项目都加载了I因子。ADL和运动分量表的系数a值分别为0.96和0.95。与单一测量相关的误差分别为+/- 4.6和+/- 3.8分的ADL和运动分量表。项目反应理论发现,所有的项目都有助于他们的测试信息曲线,并有潜在的反应。HOS与简明身体功能量表36项指标之间的相关性与其与心理功能指标之间的相关性显着不同(P
Purpose: The purpose of this study was to offer evidence of validity for the Hip Outcome Score (HOS) based on internal structure, test content, and relation to other variables. Methods: The study population consisted of 507 Subjects with a labral tear. Internal structure was evaluated by use of factor analysis and coefficient a. Test content was evaluated by use of item response theory. Pearson correlation coefficients were used to assess relations between the Short Form 36 and the HOS. Results: The mean subject age was 38 years (range, 13 to 66 years), with 232 male and 273 female subjects. Of the subjects, 263 (52%) underwent arthroscopic surgery. Factor analysis found that 17 of 19 items on the activities-of-daily-living (ADL) subscale loaded on I factor. The 2 items that did not fit the I-factor model were omitted from further testing. All 9 items on the sports subscale loaded on I factor. The coefficient a values were .96 and .95 for the ADL and sports subscales, respectively. The errors associated with a single measure were +/- 4.6 and +/- 3.8 points for the ADL and sports subscales, respectively. Item response theory found that all items contributed to their test information curves and were potentially responsive. The correlations between the HOS and Short Form 36 measures of physical function were significantly different than their correlation to measures of mental functioning (P