Cluster B and C Personality Traits, Symptom Correlates, and Treatment Utilization in Postacute Schizophrenia

Department of Psychiatry, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, United States
Journal of Nervous & Mental Disease (Impact Factor: 1.69). 10/2006; 194(9):650-3. DOI: 10.1097/01.nmd.0000235509.00780.85
Source: PubMed


Unusually high levels of Cluster B and C personality traits have been observed in schizophrenia. While these have been linked to poorer function, less clear is the association of these personality traits with symptoms and service utilization. To examine this issue, 46 participants with schizophrenia or schizoaffective disorder were administered the Millon Clinical Multiaxial Inventory, Third Edition, and the Positive and Negative Syndrome Scale, and an inventory was taken of medical and psychiatric service utilization. Two sets of multiple regression analyses using Cluster B and C traits to predict treatment utilization and symptoms revealed that emotional discomfort symptoms were significantly related to level of borderline traits. Higher levels of positive symptoms were linked with more avoidant traits and fewer dependent traits. Higher levels of negative symptoms were linked with greater avoidant traits. Service utilization was predicted by borderline, antisocial, and avoidant traits. Implications for rehabilitation and treatment are discussed.

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Available from: Paul H Lysaker, Aug 03, 2015
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    • "Cluster B PDs have received the most research attention in Sz, with a distinct focus on antisocial PD and borderline (emotionally unstable) PD. Limited evidence suggests that a quarter to a third of individuals with schizophrenia have a lifetime comorbid cluster B PD, which is remarkably high compared to the general population (1.5%) (Lindstrom et al., 2000; Lysaker et al., 2004; Wickett et al., 2006; Lenzenweger et al., 2007; Huang et al., 2009). Moreover, schizophrenia with comorbid cluster B PD is associated with more substance misuse, criminal offending, more severe neurocognitive deficits, auditory hallucinations, poor global functioning, higher relapse rates, and reports of childhood maltreatment (Lysaker et al., 2004; Bahorik and Eack, 2010; Kingdon et al., 2010). "
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