Comprehensive Psychiatry (Nov 2024)

The interplay of personality pathology and treatment outcome in psychosomatic psychotherapy: A longitudinal analysis using latent change score modelling

  • Antonie Louise Bierling,
  • Stephan Doering,
  • Kerstin Weidner,
  • Magdalena Pape,
  • Henrik Kessler,
  • Tobias Hofmann,
  • Matthias Rose,
  • Katrin Imbierowicz,
  • Franziska Geiser,
  • Jörg Rademacher,
  • Silke Michalek,
  • Eva Morawa,
  • Yesim Erim,
  • Johanna Sophie Schneider,
  • Martin Teufel,
  • Armin Hartmann,
  • Claas Lahmann,
  • Eva Milena Johanne Peters,
  • Johannes Kruse,
  • Dirk von Boetticher,
  • Christoph Herrmann-Lingen,
  • Mariel Nöhre,
  • Martina de Zwaan,
  • Ulrike Dinger,
  • Hans-Christoph Friederich,
  • Alexander Niecke,
  • Christian Albus,
  • Rüdiger Zwerenz,
  • Manfred Beutel,
  • Heribert Christian Sattel,
  • Peter Henningsen,
  • Barbara Stein,
  • Christiane Waller,
  • Karsten Hake,
  • Carsten Spitzer,
  • Andreas Stengel,
  • Stephan Zipfel,
  • Katja Weimer,
  • Harald Gündel,
  • Stephan Herpertz,
  • Ilona Croy

Journal volume & issue
Vol. 135
p. 152532

Abstract

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Introduction: While ample data demonstrate the effectiveness of inpatient psychosomatic treatment, clinical observation and empirical evidence demonstrate that not all patients benefit equally from established therapeutic methods. Especially patients with a comorbid personality disorder often show reduced therapeutic success compared to other patient groups. Due to the heterogeneous and categorical personality assessment, previous studies indicated no uniform direction of this influence. This complicates the derivation of therapeutic recommendations for mental disorders with comorbid personality pathology. Methods: Analyzing n = 2094 patients from German university hospitals enrolled in the prospective “MEPP” study, we tested the dynamic interaction between dimensionally assessed personality functioning and psychopathology of anxiety and depression. Results: Longitudinal structural equation modelling replicated the finding that the severity of symptoms at admission predicts symptom improvement within the same symptom domain. In addition, we here report a significant coupling parameter between the baseline level of personality function and the change in general psychopathology - and vice versa. Discussion and conclusion: These results imply that personality pathology at admission hinders the therapeutic improvement in anxiety and depression, and that improvement of personality pathology is hindered by general psychopathology. Furthermore, the covariance between both domains supports the assumption that personality functioning and general psychopathology cannot be clearly distinguished and adversely influence each other. A dimensional assessment of the personality pathology is therefore recommendable for psychotherapy research and targeted therapeutic treatment.

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