Giving birth to a boy can lead to higher levels of severe post-natal depression (PND) and reduced quality of life than having a girl, according to new research.
A team of researchers led by Professor Claude de Tychey, from Universite Nancy 2, France, found that just under a third of the 181 women they studied four to eight weeks after delivery had PND.
Nine per cent of the women in the study -- carried out in a French community where they didn't face cultural pressures over the sex of their baby - had severe PND and just over three-quarters of those had given birth to boys.
The team also discovered that, even if women didn't have postnatal depression, giving birth to a boy was significantly more likely to reduce their quality of life than delivering a girl.
"Post-natal depression is very common and poses a major public health problem, especially if it is not diagnosed and treated" stresses Professor de Tychey.
"When we launched our research, our main aim was to study the effect that gender has on PND. But the overwhelming finding of the study was the fact that gender appears to play a significant role in reduced quality of life as well as an increased chance of severe PND."
The researchers measured the women's quality of life using a validated questionnaire containing 36 questions. This asked the women to score eight dimensions of their health -- physical functioning, physical role, bodily pain, mental health, emotional role, social functioning, vitality and general health - using a 100-point scale.
The results were then collated into male and female births and whether the woman had no, mild or severe PND. Scores were also calculated for their overall physical and mental health. This provided 60 separate quality of life scores.
When the researchers looked at overall results they discovered that:
The figures also enabled the researchers to compare the gender differences for women with no, mild and severe PND. This showed that:
"These figures show very clearly that having a boy resulted in lower quality of life scores in all cases" says Professor de Tychey.
"We also discovered that being a first-time mother had no effect on quality of life scores. Women had the same general scores regardless of whether the recent birth was their first or second baby."
Just over half of the women who took part (52 per cent) had given birth to boys. 61 per cent of the babies included in the study were first babies (55 boys and 56 girls) and the remainder were second babies.
Women having their second baby were slightly more likely to have had a girl the first time around (59 per cent). The women's ages ranged from 19 to 40 and averaged 29.
"Post-natal depression can have a considerable impact on women as it can affect both their physical and mental health" stresses Professor de Tychey.
"Previous studies have shown that women who live in cultures where greater value is placed on sons are more likely to suffer from PND if they give birth to a girl.
"However, we believe that this study -- carried out in a French community where women didn't face cultural pressures over the sex of their baby -- is the first to show that women who give birth to boys are more likely to suffer from severe PND and reduced quality of life. Further research is needed to find out why this happens.
"We believe that our findings have important public health consequences, as they point to the need for developing prevention and early psychotherapeutic programmes for women giving birth to boys."
Journal reference: Quality of life, postnatal depression and baby gender. de Tychey et al. Journal of Clinical Nursing. 17.3, 312-322. (February 2008).
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