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Meta-Analysis
. 2020 Oct;208(10):810-817.
doi: 10.1097/NMD.0000000000001212.

Personality Disturbances in Melancholic and Nonmelancholic Unipolar Major Depression: A Systematic Review and Meta-Analysis

Marina P Valerio, Belén Blasco  1 , Florencia Tagni  1 , Alejandro G Szmulewicz, Diego J Martino
Affiliations
Meta-Analysis

Personality Disturbances in Melancholic and Nonmelancholic Unipolar Major Depression: A Systematic Review and Meta-Analysis

Marina P Valerio et al. J Nerv Ment Dis. 2020 Oct.

Abstract

Although melancholic depression has been associated with a more adequate premorbid personality style, the empirical evidence supporting this statement is inconclusive. We conducted a systematic review and meta-analyzed studies comparing the presence of personality disturbances in melancholic and nonmelancholic subtypes of major depressive disorder (MDD). We defined a) a continuous outcome, defining personality traits as a dimensional construct, and b) a dichotomous outcome, defined as the presence/absence of personality disorders (PD). We also evaluated the role of potential moderators. Our results showed significantly higher levels of neuroticism and interpersonal sensitivity, and a higher likelihood of presenting a PD in nonmelancholic depression. No significant differences were found for extraversion. The scarcity of studies and high heterogeneity were among our limitations. In conclusion, personality disturbances seem to be overrepresented in nonmelancholic MDD. The assessment of personality disturbances can be useful in clinical practice and in the study of MDD heterogeneity.

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