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1244 – Bipolar Depression Rating Scale (bdrs): Psychometric Characteristics Of The Italian Validation

Published online by Cambridge University Press:  15 April 2020

A. Bruschi
Affiliation:
Dept. of Neuroscience, Catholic University of the Sacred Heart, Rome
S. Calò
Affiliation:
Dept. of Neuroscience and Sense Organ, University of Bari, Bari
G. Camardese
Affiliation:
Dept. of Neuroscience, Catholic University of the Sacred Heart, Rome
P. Grandinetti
Affiliation:
Dept. of Neuroscience, Catholic University of the Sacred Heart, Rome
C. Palumbo
Affiliation:
Dept. of Neuroscience and Sense Organ, University of Bari, Bari
G. Pizi
Affiliation:
Dept. of Neuroscience, Catholic University of the Sacred Heart, Rome
L. Mandelli
Affiliation:
Institute of Psychiatry, University of Bologna, Bologna, Italy
A. Serretti
Affiliation:
Institute of Psychiatry, University of Bologna, Bologna, Italy
M. Berk
Affiliation:
Dept. of Psychiatry, University of Melbourne, Melbourne, VIC, Australia
G. Di Sciascio
Affiliation:
Dept. of Neuroscience and Sense Organ, University of Bari, Bari
L. Janiri
Affiliation:
Dept. of Neuroscience, Catholic University of the Sacred Heart, Rome

Abstract

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Introduction

The scales for the assessment of depressive symptoms, translated and validated in Italian, lacks in the recognition of the psychopathological nuances of the disorder. The Bipolar Depression Rating Scale (BDRS) is a tool specifically built to reflect the characteristics of bipolar depression.

Methods

Screening criteria:

  1. - aged 18–65 years

  2. - diagnosis of BD (DSM-IV-TR) (125 patients) or

  3. - diagnosis of MDD (DSM-IV-TR) (30 patients)

  4. - manifestation of depressive symptoms

  5. - no further psychiatric comorbidity on axis I and axis II (including abuse/addiction)

  6. - no serious cognitive deficits

Psychometric battery:

  • Bipolar Depression Rating Scale (BDRS),

  • Hamilton Depression Rating Scale (HAM-D),

  • Montgomery-Asberg Depression Rating Scale (MADRS),

  • Young Mania Rating Scale (YMRS).

Results

The analysis of the BDRS scores, according to the Kolmogorov-Smimov method shows a normal distribution; the α Cronbach's coefficient shows that the the scale, in its Italian version, has considerable validity and reliability (r = 0.82). The factor analysis was verified using the Varimax rotational method: after several tests, we found 2 subscales, one linked to mixed/depressive symptoms and a second related to (hypo)manic symptoms.

Conclusions

The BDRS is a valid scale for the measurement of depression in patients with Bipolar Disorder, with a notable internal consistency (Cronbach α 0.82), a significant consistency between items/total (Cronbach α from 0.80 to 0.82) and positive correlation with other scales (MADRS r 0.67, p < 0.001; HAM-D r 0.81, p < 0.001; YMRS r 0.46 p < 0.0001), including the Young Mania Rating Scale (better than the original validation sample Berk et al., 2007).

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Abstract
Copyright
Copyright © European Psychiatric Association 2013
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