Kamper Steven J, Maher Christopher G, Mackay Grant
J Man Manip Ther. 2009;17(3):163-70. doi: 10.1179/jmt.2009.17.3.163.
Most clinicians ask their patients to rate whether their health condition has improved or deteriorated over time and then use this information to guide management decisions. Many studies also use patient-rated change as an outcome measure to determine the efficacy of a particular treatment. Global rating of change (GRC) scales provide a method of obtaining this information in a manner that is quick, flexible, and efficient. As with any outcome measure, however, meaningful interpretation of results can only be undertaken with due consideration of the clinimetric properties, strengths, and weaknesses of the instrument. The purpose of this article is to summarize this information to assist appropriate interpretation of the GRC results and to provide evidence-informed advice to guide design and administration of GRC scales. These considerations are relevant and applicable to the use of GRC scales both in the clinic and in research.
大多数临床医生会询问患者对其健康状况随时间推移是有所改善还是恶化进行评分，然后利用这些信息来指导管理决策。许多研究也将患者自评的变化作为一项结果指标，以确定特定治疗的疗效。整体变化评分（GRC）量表提供了一种快速、灵活且高效地获取此类信息的方法。然而，与任何结果指标一样，只有在充分考虑该工具的测量学特性、优点和缺点后，才能对结果进行有意义的解读。本文旨在总结这些信息，以帮助对GRC结果进行恰当解读，并提供基于证据的建议，以指导GRC量表的设计和应用。这些考量对于GRC量表在临床和研究中的使用均具有相关性和适用性。
