Postnatal Depression More Common After Birthing Boy


A new study by UK researchers has found the odds of developing postnatal depression (PND) is increased after a complicated delivery or when a mother has a baby boy.

Specifically, University of Kent investigators discovered that women who give birth to males are 71-79 percent more likely to develop PND. Furthermore, women whose births had complications were 174 percent more likely to experience PND compared to those women who had no complications.

As a result of their findings, investigators Sarah Johns M.D., and Sarah Myers M.D., believe health care professionals may be able to provide better care for depression by understanding these new risk factors.

Their research also showed that while women with a tendency towards symptoms of depression, anxiety, and stress were always at increased risk of PND, they had reduced odds of developing PND after experiencing birth complications.

This is likely because these women may receive greater post-birth support because their mental health concerns were previously identified. This finding suggests interventions to support women can be effective in preventing PND developing.

The paper, Male infants and birth complications are associated with increased incidence of postnatal depression appears in the journal Social Science & Medicine.

Dr. Johns explains the study intent:

‘PND is a condition that is avoidable, and it has been shown that giving women at risk extra help and support can make it less likely to develop.

The finding that having a baby boy or a difficult birth increases a woman’s risk gives health practitioners two new and easy ways to identify women who would particularly benefit from additional support in the first few weeks and months.’

The study was conceived when Johns and Myers decided to assess whether there is a relationship between the sex of infants and PND. They wanted to learn if an association existed analogous to the known link between inflammatory immune response and the development of depressive symptoms.

Moreover, both the gestation of male fetuses and the experience of birth complications have been documented to have an association with increased inflammation. Yet, until this study, their relationships with PND were unclear.

Modern science has revealed that many known risk factors for depressive symptoms are associated with activation of inflammatory pathways.

This new knowledge expands the potential to identify new risk factors based on their inflammation causing effects – an idea supported by this study.

Source: University of Kent/EurekAlert

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