Borderline personality disorder: an adaptation of the Taiwan short version of the screening inventory into Brazilian Portuguese

Abstract Objective The current study presents the translation and adaptation of the 20-item Taiwan version of the Borderline Personality Inventory (BPI) into Brazilian Portuguese (BPI-P). Methods After translation and back-translation, the Brazilian Portuguese version was administered to three samples: patients with borderline personality disorder, psychiatric patients with comorbid substance use disorder and volunteers with no reported mental disorders. Results Significant differences between groups for borderline scores (analysis of variance [ANOVA], F = 52.923, p = 0.01) were found but there were no significant correlations between scores for borderline personality disorder and alcohol or nicotine dependence. The BPI-P had satisfactory validity for borderline personality disorder, even when anxiety and depression were present, with an area under the receiver operating characteristic curve of 0.931 at a cutoff point of 14. Conclusion This study provides support for the potential utility of the BPI-P as a screening instrument for clinical practice in Portuguese speaking countries, including outpatients with alcohol and nicotine use disorders in early or sustained remission.摘要 研究目的：本研究完成了20条目版边缘型人格量表（Borderline Personality Inventory, BPI）中国台湾版本的翻译与适配工作，形成巴西葡萄牙语版量表（BPI-P）。研究方法：经正向翻译与回译流程后，将该巴西葡萄牙语版量表施测于三类研究样本：边缘型人格障碍患者、共病物质使用障碍的精神科患者，以及无精神障碍报告的志愿者。研究结果：三组受试者的边缘型人格量表得分存在显著组间差异（方差分析[ANOVA]，F=52.923，p=0.01）；但边缘型人格障碍得分与酒精或尼古丁依赖程度无显著相关性。即便合并焦虑与抑郁症状，BPI-P对边缘型人格障碍仍具有良好的效度，其受试者工作特征（Receiver Operating Characteristic, ROC）曲线下面积在临界值14分时为0.931。研究结论：本研究证实，BPI-P可作为葡萄牙语国家临床实践中的筛查工具，包括处于早期或持续缓解期的酒精、尼古丁使用障碍门诊患者，具备潜在应用价值。