Risk factors of cycle acceleration in acutely admitted patients with bipolar disorder.

Abstract:

OBJECTIVE:To identify risk factors associated with cycle acceleration (CA), that is, progressive decrease in duration of syndrome-free intervals between affective episodes, in acutely admitted patients with bipolar disorder (BD). METHOD:All patients (n = 210) with BD I (67%) and BD II (33%) (DSM-IV) acutely admitted to a hospital serving a catchment area were compared in retrospect with regard to a positive or negative history of CA. Putative risk factors of CA with a P-value <0.05 in uni-variate tests were secondly entered into a logistic regression model. RESULTS:The logistic regression model was statistically significant (P < 0.0001) and explained between 45.3% and 60.5% of the variance of CA status. 83.7% of the cases were correctly classified with a sensitivity of 87.2% and a specificity of 80.4%. Unique significant risk factors of CA were increasing severity of affective episodes (odds ratio (OR) = 28.8), BD II (OR = 3.3), hypomanic/manic episode induced by an antidepressant and/or alcohol (OR = 3.3), and female gender (OR = 3.1). CONCLUSION:The clinical factors associated with CA may help targeting patients with BD with a course aggravation, and are in line with previously reported neuropathological processes of illness progression.

journal_name

Acta Psychiatr Scand

authors

Finseth PI,Morken G,Malt UF,Andreassen OA,Vaaler AE

doi

10.1111/acps.12308

subject

Has Abstract

pub_date

2014-11-01 00:00:00

pages

388-96

issue

5

eissn

0001-690X

issn

1600-0447

journal_volume

130

pub_type

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