Thirty-eight mothers with postnatal depression (PND) and their spouses
were assessed 3, 6 and 12 months after the birth of their infant on t
he Parenting Stress Index. Compared to 46 non-depressed controls, PND
mothers rated their child as less reinforcing, less acceptable, less a
daptable, more moody and more demanding. They rated themselves as less
competent, less emotionally attached to the child, less healthy, more
depressed and more socially isolated, with a poor relationship with t
heir spouse and a more restricted lifestyle. These differences persist
ed over the 3-12-month period, even though the level of depression dec
reased. Partners of PND mothers also rated themselves, their marital r
elationship and their child more negatively than controls, and difficu
lties became more pronounced with time. Results were paralleled by the
Profile of Moods Scale scores and the Dyadic Adjustment Scale, which
showed less consensus, less expression of affection, less satisfaction
and less cohesion for PND compared to control couples. These findings
suggest that the difficulties experienced are long lasting, with some
deterioration over time. This was reflected by a higher separation/di
vorce rate in PND couples. The importance of early intervention and th
e impact on parent-infant attachment is discussed.