Maicon Rodrigues Albuquerque1,2, Humberto Corrêa2,3,4, Tiago Castro E Couto3, Wallace Santos5, Marco Aurelio Romano-Silva2,3,4, Leonor Maria Pacheco Santos5,6. 1. Departamento de Esportes, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil. 2. Instituto Nacional de Ciência e Tecnologia em Medicina Molecular (INCT-MM), UFMG, Belo Horizonte, MG, Brazil. 3. Programa de Pós-Graduação em Medicina Molecular, Faculdade de Medicina, UFMG, Belo Horizonte, MG, Brazil. 4. Departamento de Saúde Mental, Faculdade de Medicina, UFMG, Belo Horizonte, MG, Brazil. 5. Programa de Pós-Graduação em Saúde Coletiva, Universidade de Brasília (UnB), Brasília, DF, Brazil. 6. Departamento de Saúde Coletiva, Universidade de Brasília (UnB), Brasília, DF, Brazil.
Abstract
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.
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.
Authors: Alexandra Lautarescu; Suresh Victor; Alex Lau-Zhu; Serena J Counsell; A David Edwards; Michael C Craig Journal: Arch Womens Ment Health Date: 2021-07-10 Impact factor: 3.633