Spillover effects on the relationship with the partner of a mentalization-based intervention for pregnant women.

The birth of a child has been associated with a decline in couple satisfaction, which has implications for the child's social-emotional development. This study investigated the potential spillover effect on pregnant women's perceptions of their relationships with their partners of the Supporting the Transition to and Engagement in Parenthood (STEP) program, a brief trauma-informed mentalization-based prenatal group intervention. Participants (94% White) were recruited in prenatal clinics and through online advertisements in Quebec, Canada.