University of Groningen, University Medical Center Groningen, Interdisciplinary Center Psychopathology and Emotion regulation (ICPE), Groningen, the Netherlands.
University of Groningen, Department of Psychometrics and Statistics, Groningen, the Netherlands.
Assessment. 2021 Dec;28(8):1960-1970. doi: 10.1177/1073191120947153. Epub 2020 Aug 6.
More than 40 questionnaires have been developed to assess functional somatic symptoms (FSS), but there are several methodological issues regarding the measurement of FSS. We aimed to identify which items of the somatization subscale of the Symptom Checklist-90 (SCL-90) are more informative and discriminative between persons at different levels of severity of FSS. To this end, item response theory was applied to the somatization scale of the SCL-90, collected from a sample of 82,740 adult participants without somatic conditions in the Lifelines Cohort Study. Sensitivity analyses were performed with all the participants who completed the somatization scale. Both analyses showed that Items 11 "feeling weak physically" and 12 "heavy feelings in arms or legs" were the most discriminative and informative to measure severity levels of FSS, regardless of somatic conditions. Clinicians and researchers may pay extra attention to these symptoms to augment the assessment of FSS.
已经开发了 40 多种问卷来评估功能性躯体症状（FSS），但在 FSS 的测量方面存在一些方法学问题。我们旨在确定症状清单-90（SCL-90）躯体化分量表中的哪些项目在 FSS 严重程度不同的人群之间更具信息性和区分性。为此，我们应用项目反应理论对来自 Lifelines 队列研究中无躯体疾病的 82740 名成年参与者的 SCL-90 躯体化量表进行了分析。使用所有完成躯体化量表的参与者进行了敏感性分析。这两种分析都表明，项目 11“身体虚弱”和项目 12“手臂或腿部沉重感”在测量 FSS 的严重程度方面最具区分性和信息量，无论是否存在躯体症状。临床医生和研究人员可能会特别注意这些症状，以增强对 FSS 的评估。
