Supplementary Materials to: External Validation PBQ (SMPBQ)

The aim of the present study was to validate the Spanish PBQ against external criteria of bonding disorder, as well as to establish its test-retest reliability. One hundred fifty-six postpartum women consecutively recruited from a perinatal mental health outpatient unit completed the PBQ at 4-6 weeks postpartum. Four weeks later, all mothers completed again the PBQ and were interviewed using the Birmingham Interview for Maternal Mental Health to establish the presence of a bonding disorder. Receiver operating characteristic curve analysis revealed an AUC value for the PBQ total score of 0.93 (95% CI: 0.88– 0.98), with the optimal cut-off of 13 for detecting bonding disorders (sensitivity: 92%, specificity: 87%). Optimal cut-off scores for each scale were also obtained. The test-retest reliability coefficients were moderate to good. Our data confirm the validity of PBQ for detecting bonding disorders in Spanish population. This document contains the Supplementary Material

Supplementary material for: Torres-Giménez, A., Roca-Lecumberri, A., Sureda, B., Andrés-Perpiña, S., Palacios-Hernández, B., Gelabert, E., Farré-Sender, B., Subirà-Álvarez, S., & García-Esteve, L. (2021). External Validation and Test-Retest Reliability of Postpartum Bonding Questionnaire in Spanish Mothers. The Spanish Journal of Psychology, 24. https://doi.org/10.1017/SJP.2021.44