Serial Multiple Mediation of the Marital Satisfaction and Parenting Competence in the Relationship Between Postpartum Depression and Parent–Infant Attachment in First‐Time Parents With Low‐ and High‐Risk Pregnancy Experiences: A Cross‐Sectional Study

Little is known regarding the effects of postpartum depression on parent-infant attachment in high-risk parents. Based on Mercer's theory of becoming a mother, this study aimed to (1) examine the mediating effects of marital satisfaction and parenting competence in the relationship between postpartum depression and parent-infant attachment using a serial mediation model in first-time parent couples during the first 6 months postpartum, and (2) compare the serial mediation models between parents who had experienced low-risk and high-risk pregnancies. In this cross-sectional study, a total of 194 first-time parent couples at 1 to 6 months postpartum were included. Participants completed an online survey on postpartum depression, marital satisfaction, parenting competence, and parent-infant attachment. In both low- and high-risk groups, parenting competence was a common mediator of the impact of postpartum depression on parent-infant attachment. A sequential mediation effect involving both marital satisfaction and parenting competence was observed in high-risk mothers. Our findings suggest that the adverse impacts of postpartum depression on parent-infant attachment can be mitigated by boosting parenting competence or improving the marital satisfaction in couples experiencing first high-risk pregnancy.