Dependency, mood instability, and inconsequence traits for discriminating borderline personality disorder

Abstract

Introduction Borderline personality disorder (BPD) is one of the most widely studied personality disorders (PDs). It recurrently shows traits of emotional lability, anxiety, separation insecurity, depressiveness, impulsiveness, risk exposure, and hostility, mainly affecting the domains of negative affectivity and antagonism. Objectives To investigate the most discriminant dimensions of the Dimensional Clinical Personality Inventory (Inventário Dimensional Clínico da Personalidade 2 [IDCP-2]) to distinguish people diagnosed with BPD from people without this diagnosis. Methods A total of 305 participants were included in this study: psychiatric outpatients diagnosed with BPD (n = 30), psychiatric outpatients diagnosed with other PDs (n = 75), and a community sample (n = 200). BPD traits were assessed using the dependency, mood instability, and inconsequence dimensions of the IDCP-2. Results Analysis of variance (ANOVA) comparisons indicated highest mean measures in the BPD group, and mood instability factors were the most discriminant ones when considering all groups. Applying the multiple regression analysis, we found an adjusted r 2 = 0.50, and hopelessness was the most predictive measure (β = 0.32; t = 6.19; p < 0.001). Conclusions We found discriminatory capacity for factors of all dimensions, although at different levels, and more consistent results to discriminate the BPD group from the community sample.

Development and Validation of the Mood Instability Questionnaire-Trait (MIQ-T)

“…The strongest correlation between MIQ-T and a pre-existing scale was demonstrated by PAI-BOR, despite having taken only a few items from the PAI-BOR scale when developing MIQ-T. This is consistent with the literature on MI, as MI is known to be a characteristic feature of borderline personality disorder [ 37 , 38 , 39 ] and can be used as one of the discriminant dimensions that differentiates those diagnosed with borderline personality disorder from a community sample and those with other psychiatric disorders [ 40 , 41 ].…”

Investigation on the capacity of the factors of the Clinical Dimensional Personality Inventory 2 for identifying people with substance dependence

“…Although studies have been conducted to investigate the discriminant ability of IDCP-2 for specific conditions (e.g., borderline personality disorder, dependent personality disorder, bipolar disorder; Carvalho & Pianowski, 2019a;2019b;Carvalho, Painwoski, & Gonçalves, 2018), no studies were found investigating its discriminant capacity for people with substance dependence. However, based on the literature (APA, 2013;Bornovalova et al, 2005;Kotov et al, 2017;Moraleda-Barreno, Díaz-Batanero, Pérez-Moreno, Gómez-Bujedo, & Lozano, 2018), it is possible to identify the conceptual relevant IDCP-2 factors for this purpose: Anxious Concern, Hopelessness, Superiority, Dominance, Indifference, Anxiety, Depression, Risk-taking, Deceitfulness, and Impulsivity.…”