The Calgary Depression Rating Scale for schizophrenia in a healthy control group:: Psychometric properties and reference values
The Calgary Depression Rating Scale for schizophrenia in a healthy control group:: Psychometric properties and reference values
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DOI：
10.1016/j.jad.2005.04.005
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发表时间：
2005-09-01
影响因子：
6.6
通讯作者：
Müller, KM
中科院分区：
文献类型：
--
作者：
Müller, MJ;Brening, H;Müller, KM
背景资料：精神分裂症患者的抑郁评估是非常重要的，因为抑郁症状和体征以及自杀倾向在精神分裂症患者中非常普遍。卡尔加里抑郁量表（CDSS）是标准的评估工具，由于其可靠性和有效性。方法：对154例健康体检者的CDSS项目评分和总分进行分析（49%为女性，平均年龄32.8 ± 11.7岁）作为精神分裂症患者的对照。CDSS总评分为2.6 +/- 2.7（范围0-12），约1/3的健康受试者评分=0。在“早醒”和“自杀意念”方面观察到性别差异，女性得分较高。CDSS总分（r=-0.17，P =0.03）和单项得分与年龄呈轻度负相关。CDSS量表的心理测量学特性是令人满意的（校正项目分数相关r（tc）=0.33-0.61，内部一致性Cronbach's alpha=0.76，一维因素结构）。CDSS总分呈偏态分布，符合正态分布的上半部分。基于经验分布的CDSS值，参考值列出的健康受试者的总组，并为女性和男性separately.Conclusions：结果证实了有利的心理测量特性的CDSS发现以前在临床样本中的健康对照组。这里报告的参考值可以帮助临床使用和解释的CDSS值，并强调有用的CDSS的抑郁症和自杀的精神分裂症的彻底评估。(c)2005 Elsevier B. V.保留所有权利。
Background: Assessment of depression in schizophrenia is of great importance as depressive signs and symptoms and suicidality are highly prevalent in patients with schizophrenic disorders. The Calgary Depression Rating Scale (CDSS) is the standard assessment instrument for that purpose due to its proven reliability and validity. However, so far no reference values derived from an adequate healthy sample have been published.Methods: The present study analyzed CDSS item scores and summary scores in 154 healthy subjects (49% female, mean age 32.8 +/- 11.7 years) selected from studies as controls for schizophrenic patients.Results: The total CDSS score was 2.6 +/- 2.7 (range 0-12), about 1/3 of healthy subjects had scores=0. Gender differences were observed with respect to "early awakening" and "suicidal ideation" with higher scores in females. Total CDSS scores (r=-0.17, P=0.03) and single items were slightly negatively correlated with age. The psychometric properties of the CDSS scale were satisfying (corrected item-score correlations r(tc)=0.33-0.61, internal consistency Cronbach's alpha=0.76, one-dimensional factor structure). CDSS total scores showed a skewed distribution fitting the upper part of a normal distribution. Based on the empirical distribution of CDSS values, reference values were listed for the total group of healthy subjects, and for females and males separately.Conclusions: The results corroborate the favourable psychometric properties of the CDSS found previously in clinical samples in a healthy control group. The reference values reported here can assist the clinical use and interpretation of CDSS values and emphasize the usefulness of the CDSS for a thorough assessment of depression and suicidality in schizophrenia. (c) 2005 Elsevier B.V. All rights reserved.