Psychometric Reevaluation of the Columbia-Suicide Severity Rating Scale: Findings From a Prospective, Inpatient Cohort of Severely Mentally Ill Adults
Psychometric Reevaluation of the Columbia-Suicide Severity Rating Scale: Findings From a Prospective, Inpatient Cohort of Severely Mentally Ill Adults
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DOI：
10.4088/jcp.15m10069
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发表时间：
2016-07-01
影响因子：
5.3
通讯作者：
Fowler, J. Christopher
中科院分区：
文献类型：
--
作者：
Madan, Alok;Frueh, B. Christopher;Fowler, J. Christopher
目的：由于缺乏预测措施，自杀的准确预测仍然很难。鉴于哥伦比亚自杀严重程度评定量表（C-SSRS）的风险评估的“金标准”地位，需要研究来评估其心理测量学特性，特别是预测效度。本研究通过评估C-SSRS的内部一致性、因素结构、同时效度和预测效度，补充了有限的文献。在这项纵向研究中，2012年7月1日至2014年6月30日期间，1,055名患有DSM-IV诊断的成年人连续入住精神病专科医院，患者完成了标准化评估，包括C-SSRS，结果：C-SSRS具有良好的内部一致性（a = 0.95）。主成分分析（PCA）揭示了一个2因素的解决方案，占65.3%的项目之间的方差。第一个因子加载的是思维和行为项目的严重程度，第二个因子加载的是思维项目的强度。自杀倾向总分、因子分、最严重意念单项与其他自杀倾向指标呈中度相关（0.27
Objective: Accurate prediction of suicide remains elusive due to lack of predictive measures. Given the Columbia-Suicide Severity Rating Scale's (C-SSRS) emerging "gold-standard" status for risk assessment, studies are needed to assess its psychometric properties, particularly predictive validity. The current study adds to the limited literature by assessing the C-SSRS's internal consistency, factor structure, concurrent validity, and predictive validity.Methods: In this longitudinal study of 1,055 adults with DSM-IV diagnoses consecutively admitted to a specialized psychiatric hospital between July 1, 2012, and June 30, 2014, patients completed standardized assessments, including the C-SSRS, at admission and 2, 12, and 24 weeks postdischarge.Results: The C-SSRS evidenced excellent internal consistency (ordinal a =.95). Principal components analysis (PCA) revealed a 2-factor solution, accounting for 65.3% of the variance across items. The severity of ideation and behavioral items loaded onto the first factor, and the intensity of ideation items loaded onto the second factor. The total score, factors, and the most severe ideation single item were moderately correlated with other measures of suicidality (0.27