Rhind V M, Unsworth A, Haslock I
Br J Rheumatol. 1987 Apr;26(2):126-30. doi: 10.1093/rheumatology/26.2.126.
A study of 100 patients with rheumatoid arthritis has shown good correlation amongst three rating scales when used for measuring severity of morning stiffness and severity of stiffness present at the time of interview. Duration of morning stiffness was found to correlate only moderately well with severity of morning stiffness and poorly with severity of stiffness present at the time of interview. Investigation of the patients' definitions of stiffness, with and without the aid of a list of descriptive words, indicated an inter-relationship of pain and limited movement in the majority. This linking of the two symptoms under the term 'stiffness' may explain why some objective methods of measurement do not appear to reflect the subjective stiffness of which patients complain.
一项针对100名类风湿性关节炎患者的研究表明，在用于测量晨僵严重程度和访谈时存在的僵硬严重程度时，三种评分量表之间具有良好的相关性。发现晨僵持续时间与晨僵严重程度仅呈中等程度相关，与访谈时存在的僵硬严重程度相关性较差。借助描述性词汇列表或不借助该列表对患者的僵硬定义进行调查，结果表明大多数患者中疼痛和活动受限之间存在相互关系。在“僵硬”这一术语下这两种症状的这种联系，可能解释了为什么一些客观测量方法似乎没有反映出患者所抱怨的主观僵硬感。
