Correlates of current rapid-cycling bipolar disorder: Results from the Italian multicentric RENDiBi study

ISBD Italian Chapter Epidemiological Group, Massimiliano Buoli, Bruno Mario Cesana, Giuseppe Maina, Andreas Conca, Andrea Fagiolini, Luca Steardo, A. Carlo Altamura, Bernardo Dell'Osso

Research output: Contribution to journalArticlepeer-review


Background: we aimed to compare socio-demographic and clinical differences between patients with versus without current RC in order to detect clinical factors that may favor early diagnosis and personalized treatment. Methods: A total of 1675 patients (males: n = 714 and females: n = 961; bipolar 1: n = 1042 and bipolar 2: n = 633) from different psychiatric clinics were grouped and compared according to the current presence of RC in terms of socio-demographic and clinical variables. Chi-squared tests for qualitative variables and Student's t tests for quantitative variables were executed for group comparison, and multivariable logistic regressions were performed, considering the current presence of RC as dependent variable, and socio-demographic/clinical factors as independent variables. Results: Female gender (male versus female: OR = 0.64, p = 0.04), unidentifiable prevalent polarity (versus depressive polarity: OR = 1.76, p = 0.02; versus manic polarity: OR: 2.86, p < 0.01) and hospitalization in the last year (no versus yes: OR = 0.63, p = 0.02) were found to be associated with RC in the final multivariable regression analysis. Conclusions: RC in BD seems to be more prevalent in female gender and associated with some unfavorable clinical features, such as an increased risk of hospitalization. These aspects should be taken into account in the management and monitoring of RC versus non-RC patients.

Original languageEnglish
Pages (from-to)82-89
Number of pages8
JournalEuropean Psychiatry
Publication statusPublished - Oct 1 2019


  • Bipolar disorder (BD)
  • Clinical variables
  • Rapid-cycling (RC)
  • Socio-demographic features

ASJC Scopus subject areas

  • Psychiatry and Mental health


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