Trends in Psychiatry and Psychotherapy
https://trends.org.br/article/doi/10.1590/2237-6089-2017-0038
Trends in Psychiatry and Psychotherapy
Original Article

Investigation of the clinical functioning of the Dimensional Clinical Personality Inventory 2 criticism avoidance dimension

Investigação do funcionamento clínico da dimensão evitação a críticas do Inventário Dimensional Clínico da Personalidade 2

Lucas de Francisco Carvalho; Catarina Possenti Sette; Fabiano Koich Miguel

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Abstract

Abstract Objective: To investigate the clinical functioning of the criticism avoidance dimension from the Dimensional Clinical Personality Inventory 2 (Inventário Dimensional Clínico da Personalidade 2 [IDCP-2]), establishing a clinically relevant cut-off for the typical traits of avoidant personality disorder (AvPD) for screening purposes. Methods: We administered the IDCP-2 to a sample of 2,276 subjects aged 18 to 90 years (mean = 26.95, standard deviation = 9.71). Of the total sample, 1,650 were women (67%) and most were college students (72.7%). The sample was divided into psychiatric patients diagnosed with other personality disorders (PDs) (n = 53), patients diagnosed with AvPD without comorbidities (n = 10), patients with AvPD with comorbidities (n=42) and those without a known diagnosis of PD (nonpsychiatric patients; n=2,171). Results: We checked for psychometric properties, assessed the adequacy of psychometric assumptions, and proceeded to focus analyses. The Wright item-person map showed the predominance of patients with AvPD in high levels of the scale. Analysis of variance (ANOVA) post hoc comparisons pointed to significant and expressive differences for almost all the comparisons; in the receiver operating characteristic (ROC) curve, we observed a sensitivity of 79% and a specificity of 87%. Conclusion: We found a suitable cut-off for the dimension, and results suggest that the dimension may help clinicians discriminate between patients with and without high levels in the symptoms of AvPD.

Keywords

Personality assessment, personality disorders, DSM, mental disorders

Resumo

Resumo Objetivo: Investigar o funcionamento clínico da dimensão evitação a críticas do Inventário Dimensional Clínico da Personalidade 2 (IDCP-2), estabelecendo um ponto de corte relevante para traços típicos do transtorno da personalidade evitativa (avoidant personality disorder - AvPD), para finalidade de triagem. Métodos: Nós aplicamos o IDCP-2 em uma amostra de 2.276 pessoas com idade entre 18 e 90 anos (média=26,95; desvio padrão=9,71). Dessa amostra, 1.650 eram mulheres (67%) e a maioria era de universitários (72,7%). A amostra foi dividida em pacientes psiquiátricos com outros transtornos de personalidade (PD; n = 53), pacientes com AvPD sem comorbidades (n = 10), pacientes com AvPD com comorbidades (n=42) e aqueles sem diagnóstico conhecido de PD (pacientes não psiquiátricos; n=2.171). Resultados: Foram verificadas as propriedades psicométricas, investigando a adequação dos pressupostos psicométricos, e então procedemos às análises principais. O mapa Wright de itens-pessoas mostrou a predominância de pacientes com AvPD nos níveis mais altos da escala. Análises post hoc, pela análise de variância (ANOVA), apontou para diferenças significativas e expressivas para quase todas as comparações; na curva ROC, nós observamos sensibilidade de 79% e especificidade de 87%. Conclusão: Foi encontrado um ponto de corte adequado para a dimensão, e os resultados sugerem que a dimensão pode auxiliar clínicos a discriminar pacientes com elevação nos traços do AvPD de pacientes sem elevação nesses traços.

Palavras-chave

Avaliação da personalidade, transtornos da personalidade, DSM, transtornos mentais

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