There are no files associated with this item. Show full item record Files in this item Files Our findings suggest simultaneous administration of both scales may improve identification of antepartum depressive disorders in clinical settings. The PHQ-9 captures somatic symptoms, while EPDS detects depressive symptoms comorbid with anxiety during early pregnancy. Both the PHQ-9 and EPDS are reliable and valid scales for antepartum depression assessment. The agreement between the two scales was generally fair at different cutoff scores with the highest Cohen׳s kappa being 0.46. In 2009, Slaney, Tkatchouk, Gabriel and Maraun reported that of 368 articles published in 2004, 90.8 and 96.2 addressed reliability and validity evidence, respectively. EFA including all items from PHQ-9 and EPDS yielded four factors, namely, “somatization”, “depression and suicidal ideation”, “anxiety and depression”, and “anhedonia”. and testing purposes lacked reliability and validity information, where 41 of instruments reported reliability information, and 31.7 reported validity informa-tion. Based on exploratory factor analysis (EFA), both scales yielded a two-factor structure. Correlation between PHQ-9 and EPDS scores was fair (rho=0.52). Both scales had good internal consistency (Cronbach׳s alpha>0.8). BACKGROUND: This study assesses, for the first time, the validity and internal reliability of the Edinburgh Post Natal Depression Scale (EPDS) and the WHO. We examined reliability, construct and concurrent validity between two scales using internal consistency indices, factor structures, correlations, and Cohen׳s kappa. A structured interview was used to collect data using PHQ-9 and EPDS. This cross-sectional study included 1517 women receiving prenatal care from February 2012 to March 2013. We sought to evaluate the psychometric properties of two widely used screening scales: the Patient Health Questionnaire (PHQ-9) and Edinburgh Postnatal Depression Scale (EPDS) among pregnant Peruvian women.
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