Paternal postpartum depression, coparenting, and father-infant bonding: Testing two mediated models using structural equation modeling.

Background: Impaired father-infant bonding is a mental health issue that has been understudied. The current study aimed to examine the extent to which fathers' depression symptoms and coparenting relationship, respectively, are associated with infant bonding, as well as how these two variables mediate in the association with infant bonding.

Methods: Cross-sectional data from 612 fathers of infants (0-24 months) were used in this study. Path analyses on two competing mediation models were used to examine the direct and indirect associations between fathers' depression symptoms, coparenting relationship, and infant bonding, after controlling for several known covariates.

Results: Whether fathers reported depression symptoms (Model 1) or reported lower levels of coparenting relationships (Model 2), they also reported higher levels of impaired infant bonding, rejection and anger, and anxiety about care after controlling for the covariates. The analysis further found significant indirect associations between father depression symptoms and father-infant bonding via the coparenting relationship (Model 1) as well as significant indirect associations between the coparenting relationship and father-infant bonding via father depression symptoms (Model 2).

Limitations: The cross-sectional data cannot show causal links. Specific efforts were made to recruit fathers with depression symptoms, and therefore prevalence rates may appear skewed.

Conclusions: Decreasing depression symptoms and improving coparenting quality can potentially improve father-infant bonding. Fathers' depression symptoms and coparenting quality can be bi-directionally related in the association with father-infant bonding. Early detection and preventive treatments for paternal depression symptoms and coparenting are warranted.