Psychometric testing and the predictive validity of the Postpartum Depression Predictors Inventory-Revised (PDPI-R): A longitudinal study with Turkish women.

Objective: The aim of this study was to investigate the validity and reliability of the prenatal and postnatal versions of the Postpartum Depression Predictors Inventory-Revised (PDPI-R) and to examine the predictive validity of PDPI-R in Turkish women, considering two gold standards to determine postpartum depression (PPD).
Methods: This prospective longitudinal study was conducted between August 2021 and September 2023. A total of 301 pregnant women participated in the study. Participants completed the PDPI-R during the third trimester of pregnancy (T1) and at 4 weeks postpartum (T2). At T2, participants also completed the Edinburgh Postnatal Depression Scale (EPDS), and women were interviewed using the Structured Clinical Interview for DSM-IV Disorders.
Results: The prenatal version of the PDPI-R predicted PPD with 64% (R:0.64) accuracy on the basis of the EPDS and 78% accuracy (R:0.78) according to DSM IV criteria. The postnatal version of the PDPI-R predicted PPD with 71% (R:0.71) accuracy on the basis of the EPDS and 81% accuracy (R:0.781) based on DSM IV criteria. The cut-off points exhibited the highest sensitivity and specificity values at 8.5 for the prenatal version and 10.5 for the postnatal version.
Conclusions: The PDPI-R is a valid and reliable screening tool for identifying Turkish women at high risk of developing PPD and for estimating the psychosocial risk associated with PPD.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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