Early intervention to protect the mother-infant relationship following postnatal depression - A randomised controlled trial

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Approximately 40,000 Australian women annually experience postnatal depression. Postnatal depression interferes with mother-infant relationships, which can influence brain development and long-term cognitive and behavioural outcomes for the child. Current best practice treatment for postnatal depression generally involves treating only maternal mood. However, treatment focusing on maternal mood alone does not improve the mother-infant relationship. Therefore, it is important to directly target mother-infant difficulties as part of the routine care of postnatally depressed women. Existing mother-infant interventions targeted at women with postnatal depression are scarce, poorly-evaluated, of long duration, and have not been adapted for Australian use. This study aims to evaluate the effectiveness of a brief, cost-effective 4-week early intervention program that we developed to improve the mother-infant relationship (Happiness, Understanding, Giving & Sharing "HUGS"). This intervention is added to a 9-week evaluated program we previously developed for treatment of maternal postnatal depression. Treating existing depression first increases the emotional availability needed for optimal mother-infant interaction. The HUGS intervention has shown promising results in two pilot studies. In a randomised controlled trial comparing HUGS to an attention placebo playgroup (control group), the quality of the mother-infant relationship and developmental milestones will be assessed in 100 mother-infant dyads. It is hypothesised that women undergoing the combined postnatal depression treatment and HUGS program will show greater improvement compared to the control group who receive postnatal depression treatment followed by the attention placebo playgroup in: 1. The observed quality of the mother-infant interaction; and 2. Maternal reports of parenting stress, including feelings of attachment to their infant. It is also hypothesised that infants undergoing the HUGS program will show greater improvement compared to infants in the attention placebo playgroup, in terms of: 1. Difficult infant behaviour; and 2. Early developmental milestones.