Maternal depression across the first years of life carries long-term negative consequences for children's well-being; yet, few studies focused on fathers as potential source of resilience in the context of chronic maternal depression. Utilizing an extreme-case design, a community birth cohort of married/cohabitating mothers (N = 1983) with no comorbid risk was repeatedly tested for maternal depression across the first year and again at 6 years, leading to two matched cohorts; 46 mothers with chronic depression and 103 non-depressed controls. At 6 years, mother and child underwent psychiatric diagnosis and mother-child and father-child interactions observed. Partners of depressed mothers exhibited reduced sensitivity, lower reciprocity, and higher tension during interactions, particularly among children with psychopathology. Maternal depression increased child propensity to display Axis-I disorder upon school-entry by fourfold. Sensitive fathering reduced this risk by half. Findings underscore the father's resilience-promoting role in cases of maternal depression and emphasize the need for father-focused interventions.
Keywords: Child psychopathology; Fatherhood; Longitudinal studies; Maternal depression; Parent–child interaction.