Bobes J, Badía X, Luque A, García M, González M P, Dal-Ré R
Area de Psiquiatría, Facultad de Medicina, Universidad de Oviedo, Madrid.
Med Clin (Barc). 1999 Apr 24;112(14):530-8.
Social phobia is an anxiety disorder of increasing interest in clinical psychiatric practice and research. The questionnaires most widely used in the psychometric evaluation of these patients are: Liebowitz Social Anxiety Scale (LSAS), Social Anxiety and Distress Scale (SADS) and Sheehan Disability Inventory (SDI). The objective of this study was to evaluate the validity and reproducibility of the Spanish versions.
Convergent validity was analysed by correlating patients' scores on the LSAS, SADS and SDI with scores on the Global Activity Evaluation Scale (GAES), the Hamilton Anxiety Scale (HAM-A) and the Visual Analogue Scale (VAS) of the EuroQol. Validity of the internal structure was examined by analysing the correlations between the different sub-escales of the questionnaires. Internal consistency was analysed using Cronbach's alpha and Kuder-Richardson coefficients. Discriminative capability was analysed by comparing LSAS, SADS and SDI scores of patients with social phobia with scores from healthy subjects, and with that obtained on the HAM-A and the EuroQol VAS. Reproducibility was analysed by re-testing patients after 15 days.
57 patients and 57 healthy subjects were recruited in 4 psychiatric centres. The three questionnaires showed an adequate convergent validity with the GAES, the HAM-A and the EuroQol VAS (r = -0.24-0.40 and r = 0.29-0.52). The LSAS and SDI questionnaires showed a homogenous internal structure in terms of correlation between sub-scales (r = -0.61-0.93 for LSAS, and r = -0.04-0.61 for SDI). All the sub-scales of the questionnaires showed an adequate internal consistency (with coefficients between 0.72 and 0.88). The questionnaires discriminated between groups of patients with different levels of symptom severity and self-perceived overall health. They also discriminated between patients with social phobia and healthy subjects (area under the Receiver's Operating Characteristics curves = 0.95-0.99). All sub-scales from the questionnaires showed adequate reproducibility (with intraclass correlation coefficients between 0.63 and 0.88).
The Spanish versions of the LSAS, SADS and SDI questionnaires have shown adequate validity and reproducibility for use in clinical research and the clinical assessment of patients with social phobia in Spain.
社交恐惧症是一种在临床精神科实践和研究中越来越受关注的焦虑症。在对这些患者进行心理测量评估时使用最广泛的问卷有：利博维茨社交焦虑量表（LSAS）、社交焦虑与痛苦量表（SADS）和希恩残疾量表（SDI）。本研究的目的是评估西班牙语版本的有效性和可重复性。
通过将患者在LSAS、SADS和SDI上的得分与全球活动评估量表（GAES）、汉密尔顿焦虑量表（HAM - A）以及欧洲生活质量视觉模拟量表（VAS）的得分进行相关性分析，来分析收敛效度。通过分析问卷不同子量表之间的相关性来检验内部结构的有效性。使用克朗巴哈α系数和库德 - 理查森系数分析内部一致性。通过比较社交恐惧症患者的LSAS、SADS和SDI得分与健康受试者的得分，以及与HAM - A和欧洲生活质量VAS上获得的得分，来分析区分能力。通过在15天后对患者进行重新测试来分析可重复性。
在4个精神科中心招募了57名患者和57名健康受试者。这三份问卷与GAES、HAM - A和欧洲生活质量VAS显示出足够的收敛效度（r = -0.24 - 0.40以及r = 0.29 - 0.52）。就子量表之间的相关性而言，LSAS和SDI问卷显示出同质的内部结构（LSAS的r = -0.61 - 0.93，SDI的r = -0.04 - 0.61）。问卷的所有子量表都显示出足够的内部一致性（系数在0.72至0.88之间）。这些问卷能够区分不同症状严重程度和自我感知总体健康水平的患者组。它们还能区分社交恐惧症患者和健康受试者（受试者工作特征曲线下面积 = 0.95 - 0.99）。问卷的所有子量表都显示出足够的可重复性（组内相关系数在0.63至0.88之间）。
LSAS、SADS和SDI问卷的西班牙语版本在西班牙用于社交恐惧症患者的临床研究和临床评估时，已显示出足够的有效性和可重复性。
