LAUSR

OBJECTIVES Screening and diagnostic instruments for Borderline Personality Disorder (BPD) are not validated in people aged over 60. We report a pilot study examining the sensitivity and specificity of a de-novo screening instrument in older adults. METHODS The BPD-OA screening tool incorporates DSM 5 and literature describing the expression of BPD in older adults. This study was conducted using a case control design. The Diagnostic Interview for Borderlines-Revised (DIB-R) and the McLean Screening Instrument for BPD (MSI-BPD) were used as comparators. Comprehensive assessment by psychiatric teams determined participants to be (i) BPD-positive (n = 22) or (ii) BPD-negative (gender matched; n = 21). RESULTS The BPD-OA was the most sensitive instrument for discriminating older adult BPD from non-BPD participants (sensitivity = 0.82). No significant relationship was found between the BPD-OA score and age in BPD-diagnosed participants (r = -0.181, n = 21, p = .432). Participant age explained 3.2% of the variance in BPD-OA scores. Of the 21 BPD-negative participants, eight false positives experienced prominent mood disorders (specificity = 0.62). CONCLUSIONS The BPD-OA screening tool is clearly superior to instruments validated for use in younger people. Further refinement and evaluation will enhance its sensitivity and specificity. CLINICAL IMPLICATIONS Detection of BPD in older adult care settings will improve outcomes for patients, families, and staff through better understanding and appropriate management and treatment strategies.