Screening for depression: Rasch analysis of the dimensional structure of the PHQ-9 and the HADS-D
Screening for depression: Rasch analysis of the dimensional structure of the PHQ-9 and the HADS-D
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DOI：
10.1016/j.jad.2009.07.004
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发表时间：
2010-05-01
影响因子：
6.6
通讯作者：
Regitz-Zagrosek, Vera
中科院分区：
文献类型：
--
作者：
Kendel, Friederike;Wirtz, Markus;Regitz-Zagrosek, Vera
背景 医院焦虑和抑郁量表 (HADS-D) 和患者健康问卷 (PHQ-9) 的抑郁模块都广泛用于抑郁症筛查。我们分析了两个量表单独和跨量表的维度和项目拟合度。此外，我们试图找出证明项目反应偏差与年龄和温和方法相关的项目。对 1271 名接受冠状动脉搭桥手术 (CABG) 的患者（平均年龄 67.2 岁，22 5% 女性）进行抑郁分量表 HADS-D 和 PHQ-9 进行 Rasch 分析以评估模型的整体拟合度、个体项目拟合度和差异项目功能 (DIF) 结果 Rasch 分析显示，HADS-D 和 PHQ-9 具有共同的核心结构，其中包含 HADS-D 的 6 个项目和PHQ-9 其中两项与 PHQ-9 的 2 项简写形式相同 此外，疲劳性是唯一适合该模型的躯体项目 未观察到实质性 DIF 局限性 这些结果的普遍性可能仅限于等待 CABG 的患者 结论 PHQ-9 的简写形式似乎是筛查抑郁症的经济且有效的工具，这表明 HADS-D 的 6 项所捕获的相同潜在结构需要进一步研究评估添加疲劳性是否可以增强 PHQ-2 在该患者群体中的有效性 (C) 2009 Elsevier B V 保留所有权利
Background Both the depression modules of the Hospital Anxiety and Depression Scale (HADS-D) and the Patient Health Questionnaire (PHQ-9) ale widely used for the screening of depression We analyzed the dimensionality and the item fit of both scales individually and across the scales. Moreover, we sought to identify items which evidenced item response bias associated with age and gentlerMethods. The depression subscales HADS-D and the PHQ-9 were administered to 1271 patients (mean age 67.2, 22 5% women) undergoing coronary artery bypass graft surgery (CABG) Rasch analyses were performed to assess the overall fit of the model, individual item fit and differential item functioning (DIF)Results Rasch analysis revealed that the HADS-D and the PHQ-9 feature a common core construct containing six items of the HADS-D and three items of the PHQ-9 Two of these items are identical with the 2-item short form of the PHQ-9 In addition, fatigability was the only somatic item that fitted the model No substantial DIF was observedLimitations The generalizability of these results might be restricted to patients awaiting CABGConclusions The short form of the PHQ-9 seems to be an economic and valid instrument for the screening of depression, which indicates the same latent construct that is captured by six items of the HADS-D Further studies are needed to evaluate whether the addition of fatigability might enhance the validity of the PHQ-2 in this patient population (C) 2009 Elsevier B V All rights reserved