Many patients who seek treatment for chronic back pain are also at a higher risk of having comorbid anxiety- and depression-related disorders. Measures of mood and anxiety are routinely used in medical settings to screen for depression- and anxiety-related symptoms. However, factor analyses of other measures of mood and anxiety in medical settings often detect a somatization factor which, in turn, limits their discriminant validity for use across medical settings. The Inventory of Depression and Anxiety Symptoms-II (IDAS-II) is a comprehensive self-report inventory that assesses varying aspects of mood and anxiety. The purpose of this investigation is to examine the three-factor structure and validity of the IDAS-II in a chronic pain treatment-seeking sample. A total of 169 patients completed the IDAS-II and the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) upon admission. Confirmatory factor analyses were computed using the scales of the IDAS-II and zero-order correlations between the IDAS-II factors from the best-fitting model and scale scores of the MMPI-2-RF. Overall, a three-factor structure of the IDAS-II was not supported; instead, a one-factor solution fit best. Using the MMPI-2-RF as external criteria, the one-factor of the IDAS-II correlated highest with the Somatic Complaints scale and the Demoralization scale. Overall, item content on the IDAS-II shares overlap with many symptoms that patients with chronic pain likely would endorse. Discussion about implications of using mood/anxiety measures and models in medical settings that are in line with the Hierarchical Taxonomy of Psychopathology (HiTOP) are discussed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

中文翻译：

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慢性背痛寻求治疗样本中抑郁和焦虑症状清单-II (IDAS-II) 的因子结构和有效性。

许多因慢性背痛而寻求治疗的患者也有较高的共患焦虑和抑郁相关疾病的风险。情绪和焦虑的测量通常在医疗环境中用于筛查与抑郁和焦虑相关的症状。然而，对医疗环境中其他情绪和焦虑测量的因素分析通常会检测到躯体化因素，这反过来又限制了它们在医疗环境中使用的区分有效性。抑郁和焦虑症状清单-II (IDAS-II) 是一个全面的自我报告清单，用于评估情绪和焦虑的不同方面。本调查的目的是检查 IDAS-II 在慢性疼痛寻求治疗样本中的三因素结构和有效性。共有 169 名患者在入院时完成了 IDAS-II 和明尼苏达多相人格量表-2-重组表 (MMPI-2-RF)。使用 IDAS-II 的量表和来自最佳拟合模型的 IDAS-II 因子与 MMPI-2-RF 的量表分数之间的零阶相关性计算验证性因子分析。总体而言，不支持 IDAS-II 的三因素结构；相反，单因素解决方案最适合。使用 MMPI-2-RF 作为外部标准，IDAS-II 的单因素与躯体投诉量表和士气低落量表相关性最高。总体而言，IDAS-II 上的项目内容与慢性疼痛患者可能认可的许多症状有重叠。讨论了在符合精神病理学分级分类法 (HiTOP) 的医疗环境中使用情绪/焦虑测量和模型的影响。（PsycInfo 数据库记录 (c) 2022 APA，保留所有权利）。