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目的:验证基于国际功能、残疾和健康分类(ICF)康复组合的功能评定工具在老年失能评估中的效度。方法:全国15家养老机构的1610例老人参与本研究。用基于ICF康复组合的功能评定工具对老人进行失能评估，以数字化评定量表(0～10分)评估条目失能程度，并用12项简易生活质量问卷调查(SF-12)量表对老人进行生活质量评定，通过因子分析检验失能评定工具的结构效度，通过ICF功能评估工具与SF-12的相关性验证其的校标关联效度。结果:以主轴法的直接斜交转轴法进行因子分析，得到3个特征值大于1的因子，累计解释变异量为74.368%。因子分析结果显示，存在双重载荷的条目有“d550吃”；校标关联效度分析显示，失能评估各条目得分和总分与生理领域得分和心理领域得分均呈显著性负相关(n P<0.001)。n 结论:基于ICF康复组合的失能评定工具与数字评定量表联合在老年失能评定中有良好的结构效度和校标关联效度。“,”Objective:To explore the validity of a function assessing tool based on the International Classification of Functioning, Disability and Health′s (ICF′s) rehabilitation set in assessing aging-related disability.Methods:A total of 1610 elderly people from 15 nursing homes across China were assessed using the tool based on the ICF′s rehabilitation set and with the 12-item short form health survey (SF-12). The structural validity of the responses was analyzed using factor analysis, and criterion-related validity was also evaluated.Results:The factor analysis yielded three factors with eigenvalues greater than 1. Their cumulative explanatory power was 74.4%. Item d550 eating had double loading in the factor analysis. The item scores and the total scores of the disability assessment tool were significantly negatively correlated with the physiological function domain scores and the psychological function domain scores.Conclusion:The function assessment tool based on the ICF′s rehabilitation set when combined with a numerical rating scale has good structural and criterion-related validity in the assessment of disability due to aging.