Borderline personality disorder (BPD) is underdiagnosed in clinical practice. One approach towards improving diagnostic detection is the use of screening questionnaires. It is important for a screening test to have high sensitivity because the more time-intensive/expensive follow-up diagnostic inquiry will presumably only occur in patients who are positive on the initial screen. The most commonly studied self-report scale specific for BPD is the McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD). We summarize the performance of the scale across studies, examine the performance of the scale using different cutoff scores, and highlight the approach used by investigators in recommending a cutoff score. Most studies of the scale have taken a case-finding approach in deriving the cutoff score on the scale instead of a screening approach. For the purposes of screening, it may be more appropriate for the cutoff score on the MSI-BPD to be less than the currently recommended cutoff of 7.

中文翻译：

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用麦克莱恩筛查仪筛查边缘型人格障碍：文献回顾与批判

边缘型人格障碍（BPD）在临床实践中未被充分诊断。改进诊断检测的一种方法是使用筛查问卷。筛查试验具有高灵敏度很重要，因为更耗时/昂贵的后续诊断询问可能只会发生在初始筛查呈阳性的患者中。最常研究的针对 BPD 的自我报告量表是 McLean 边缘型人格障碍筛查工具 (MSI-BPD)。我们总结了跨研究量表的表现，使用不同的截止分数来检查量表的表现，并强调调查人员在推荐截止分数时使用的方法。该量表的大多数研究都采用案例发现方法来推导量表的截止分数，而不是筛选方法。出于筛查目的，MSI-BPD 的临界值低于当前推荐的临界值 7 可能更合适。