TY - JOUR PY - 2016// TI - Onset polarity in bipolar disorder: a strong association between first depressive episode and suicide attempts JO - Journal of affective disorders A1 - Cremaschi, Laura A1 - Dell'osso, Bernardo A1 - Vismara, Matteo A1 - Dobrea, Cristina A1 - Buoli, Massimiliano A1 - Ketter, Terence A. A1 - Altamura, A. Carlo SP - 182 EP - 187 VL - 209 IS - N2 - BACKGROUND: The role of onset polarity (OP) in patients with bipolar disorder (BD) has been increasingly investigated over the last few years, for its clinical, prognostic, and therapeutic implications. The present study sought to assess whether OP was associated with specific correlates, in particular with a differential suicidal risk in BD patients.

METHODS: A sample of 362 recovered BD patients was dichotomized by OP: depressed (DO) or elevated onset (EO: hypomanic/manic/mixed). Socio-demographic and clinical variables were compared between the subgroups. Additionally, binary logistic regression was performed to assess features associated with OP.

RESULTS: DO compared with EO patients had older current age and were more often female, but less often single and unemployed. Clinically, DO versus EO had a more than doubled rate of suicide attempts, as well as significantly higher rates of BD II diagnosis, lifetime stressful events, current psychotropics and antidepressants use, longer duration of the most recent episode (more often depressive), but lower rates of psychosis and involuntary commitments. LIMITATIONS: Retrospective design limiting the accurate assessment of total number of prior episodes of each polarity.

CONCLUSIONS: Our results support the influence of OP on BD course and outcome. Moreover, in light of the relationship between DO and a higher rate of suicide attempts, further investigation may help clinicians in identifying patients at higher risk of suicide attempts.

Copyright © 2016. Published by Elsevier B.V.

Language: en

LA - en SN - 0165-0327 UR - http://dx.doi.org/10.1016/j.jad.2016.11.043 ID - ref1 ER -