The impact of maternal depression and personality disorder on early infant care.

Aim: Previous studies have reported detrimental effects of maternal depression on infant care but have not taken into account the potential confounding effects of co-morbid personality disorder. We aimed to examine the independent effects of maternal depression and personality disorder on infant care.
Method: Assessments with 200 mothers who had a diagnosis of depression, personality disorder, both conditions, or neither condition, when their infants were aged 2 months, included structured clinical interviews, an interview about infant care practices, and standardised measures of quality of the home environment, maternal involvement with the baby, maternal sensitivity and infant irritability.
Results: The presence of depression and personality disorder had significant independent detrimental effects on infant care practices and maternal involvement with the baby, while depression alone had a negative effect on quality of the home environment.
Conclusion: Women with depression are less likely to use recommended infant care practices only when they also meet criteria for co-morbid personality disorder. Professionals working with women and babies need to consider the particular difficulties that mothers with both personality disorder and depression may have in providing satisfactory infant care.