Standardization of depression measurement: a common metric was developed for 11 self-report depression measures
Standardization of depression measurement: a common metric was developed for 11 self-report depression measures
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DOI：
10.1016/j.jclinepi.2013.04.019
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发表时间：
2014-01-01
影响因子：
7.2
通讯作者：
Rose, Matthias
中科院分区：
文献类型：
--
作者：
Wahl, Inka;Loewe, Bernd;Rose, Matthias
目的：为抑郁症严重程度的评估提供一个标准化的测量标准，以使已建立的抑郁测量结果具有可比性。研究设计与背景：应用项目反应理论(IRT)方法编制了11份抑郁问卷的通用测量标准。对33,844名成年人的数据进行了二次分析，包括对23,817名患有精神和/或疾病的住院和门诊患者(46%患有抑郁障碍)的常规评估，以及从三项具有代表性的德国家庭调查中随机选择的10,027名普通人群样本。结果：抑郁严重程度的标准化测量由143个项目定义，为了易于解释，分数被归一化为一般人群平均值50(标准差=10)。它涵盖了由现有工具评估的抑郁症严重程度的整个范围。该指标允许在所包括的衡量标准之间进行比较。它们在测量精度和量程上有很大的差异，为仪器的选择提供了依据。已发表的特定量表的抑郁严重程度阈值分数在不同的调查问卷上显示出显著的一致性。结论：基于IRT的独立于工具的抑郁严重程度测量能够在已建立的测量之间进行直接比较。“通用标尺”通过确定临床和流行病学决策的关键阈值，简化了对抑郁症评估的解释，并促进了跨研究的综合心理测量学研究，包括荟萃分析。(C)2014 Elsevier Inc.保留所有权利。
Objectives: To provide a standardized metric for the assessment of depression severity to enable comparability among results of established depression measures.Study Design and Setting: A common metric for 11 depression questionnaires was developed applying item response theory (IRT) methods. Data of 33,844 adults were used for secondary analysis including routine assessments of 23,817 in- and outpatients with mental and/or medical conditions (46% with depressive disorders) and a general population sample of 10,027 randomly selected participants from three representative German household surveys.Results: A standardized metric for depression severity was defined by 143 items, and scores were normed to a general population mean of 50 (standard deviation = 10) for easy interpretability. It covers the entire range of depression severity assessed by established instruments. The metric allows comparisons among included measures. Large differences were found in their measurement precision and range, providing a rationale for instrument selection. Published scale-specific threshold scores of depression severity showed remarkable consistencies across different questionnaires.Conclusion: An IRT-based instrument-independent metric for depression severity enables direct comparisons among established measures. The "common ruler" simplifies the interpretation of depression assessment by identifying key thresholds for clinical and epidemiologic decision making and facilitates integrative psychometric research across studies, including meta-analysis. (C) 2014 Elsevier Inc. All rights reserved.