Snyder D K, Power D G
J Clin Psychol. 1981 Jul;37(3):602-7. doi: 10.1002/1097-4679(198107)37:3<602::aid-jclp2270370327>3.0.co;2-g.
The task of the clinician in evaluating the possible role of psychological factors in patients' pain disability is a most difficult one. This task becomes even more arduous when confronted with unelevated MMPI profiles from patients in whom physical findings are minimal or absent. The current study employs a multivariate, quantitative taxonomic procedure to delineate homogeneous subgroupings of chronic pain patients who meet this criterion. Subsequent analysis of base rate data for subgroups across a broad range of pain-related variables provide an actuarial basis of assessment of psychological factors within this population. Results indicate that of five subtypes identified, only one group of patients, who comprise 9% of the total sample, are likely to be free of significant psychological components in their pain behavior. Implications for clinical interpretation and future research are discussed.
临床医生评估心理因素在患者疼痛致残中可能发挥的作用是一项极其困难的任务。当面对身体检查结果很少或没有的患者的明尼苏达多相人格调查表（MMPI）结果未升高时，这项任务变得更加艰巨。本研究采用多元定量分类程序来描绘符合该标准的慢性疼痛患者的同质亚组。随后对各亚组在广泛的疼痛相关变量上的基础率数据进行分析，为评估该人群中的心理因素提供了精算基础。结果表明，在确定的五种亚型中，只有一组患者（占总样本的9%）的疼痛行为可能没有明显的心理成分。文中还讨论了对临床解释和未来研究的启示。
