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Trends in Psychiatry and Psychotherapy

Print version ISSN 2237-6089On-line version ISSN 2238-0019

Abstract

ALBUQUERQUE, Maicon Rodrigues et al. A proposal for a new Brazilian six-item version of the Edinburgh Postnatal Depression Scale. Trends Psychiatry Psychother. [online]. 2017, vol.39, n.1, pp.29-33. ISSN 2237-6089.  http://dx.doi.org/10.1590/2237-6089-2016-0056.

Introduction:

Factor analysis of the Edinburgh Postnatal Depression Scale (EPDS) could result in a shorter and easier to handle screening tool. Therefore, the aim of this study was to check and compare the metrics of two different 6-item EPDS subscales.

Methods:

We administered the EPDS to a total of 3,891 women who had given birth between 1 and 3 months previously. We conducted confirmatory and exploratory factor analyses and plotted receiver-operating characteristics (ROC) curves to, respectively, determine construct validity, scale items' fit to the data, and ideal cutoff scores for the short versions.

Results:

A previously defined 6-item scale did not exhibit construct validity for our sample. Nevertheless, we used exploratory factor analysis to derive a new 6-item scale with very good construct validity. The area under the ROC curve of the new 6-item scale was 0.986 and the ideal cutoff score was ≥ 6.

Conclusions:

The new 6-item scale has adequate psychometric properties and similar ROC curve values to the10-item version and offers a means of reducing the cost and time taken to administer the instrument.

Keywords : Postpartum depression; affective symptoms; EPDS.

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