A proposal for a new Brazilian six-item version of the Edinburgh Postnatal Depression Scale

Maicon Rodrigues Albuquerque, Humberto Corrêa, Tiago Castro e Couto, Wallace Santos, Marco Aurelio Romano-Silva, Leonor Maria Pacheco Santos
2017 Trends in Psychiatry and Psychotherapy  
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,
more » ... 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.
doi:10.1590/2237-6089-2016-0056 pmid:28403320 fatcat:63bsom42prdphjo7oejhyq32wa