A new study by researchers from Sweden and Bangladesh have found that women suffering from depression and anxiety during pregnancy give birth to smaller babies who are more likely to have health problems when they are born and are more likely to die in infancy.
This was the first study of its kind to look at a non Western population. The study focused on 720 pregnant women in the third trimester of pregnancy living in two rural areas of Bangladesh and was a joint study between the Karolinska Instituet in Sweden and the Bangladesh Rural Advancement Committee (BRAC).
The mental health of the pregnant women was assessed before birth and up to 8 months after the birth using the Edinburgh Postpartum Depression Scale and State Trait Anxiety Inventory.
Over 80 percent of the babies born were weighed within 48 hour of delivery and baseline data provided socio economic, obstetric, reproductive, social support and other information.
“18 percent of the women we studied in two rural areas of Bangladesh were diagnosed as having depression and one-quarter as having anxiety during pregnancy, and these women were much more likely to give birth to very small babies” said Hashima E Nasreen, leader of the study.
“This is a worrying problem, since low birth weight is strongly associated with infant death, which may in turn perpetuate the cycle of mental health problems and underdevelopment” said Nasreen.
Nasreen and colleagues found that a total of 19 percent of women gave birth to small babies weighing less than 2,500 grams.
Women who were suffering from depression and anxiety during pregnancy were twice as likely to give birth to smaller babies as those women who were in better mental health whilst carrying their baby.
The study highlighted how much of an influence depression and anxiety has on infant health and indeed that mental health would appear to play a greater role in infant health than the likes of poverty and lack of nutrition.
“The reduction of LBW (low birth weight) at term is an important indicator of the internationally agreed Millennium Development Goals for reducing child mortality and is a key indicator of progress” the researchers concluded.
“Our study indicates that, in order to achieve this goal, maternal depressive and anxiety symptoms during pregnancy need to be addressed.”
The study has been published in the online journal BMC Public Health.

New study finds EPA fish oil effective for depressed people
A study carried out by Canadian researchers from Universite de Montreal, McGill, Queen’s and the Universite Laval has found that Omega 3 fatty acid supplements high in EPA can effectively treat depression, provided the depressed person isn’t also suffering from an anxiety disorder.
The study was exploring whether it was possible to use Omega 3 supplements to fight depression instead of using anti depressant drugs like Prozac or Paxil, which also carry some unpleasant side effects.
“Many of these (alternative) treatments have not been adequately evaluated” said Francois Lesperance, director of the study and head of psychiatry at the Universite de Montreal hospital centre, reported The Montreal Gazette.
The study involved a total of 432 people from Quebec and Ontario. Over a period of 8 weeks, half of the participants took 3 capsules of Omega 3 fish oil a day. The Omega 3 fish oil that was used in the study had a high concentration of Eicosapentaenoic acid or EPA, which is an Omega 3 fatty acid that can be found in oily fish like Salmon, Tuna, Herring, Sardines and Mackerel.
The other half of the participants took 3 capsules of a placebo which contained just sunflower oil that had been flavoured with fish oil.
Throughout the 8 week period all of the participants were asked to complete a questionnaire which evaluated their symptoms of depression.
The results showed that although there was an overall improvement in the group using the Omega 3 fish oil capsules, there was quite a significant improvement in a sub group of the study where the individuals were suffering from depression but did not also suffer from an anxiety disorder.
There have been numerous studies to date which have revealed that a lack of Omega 3 fatty acids in the diet could contribute towards depression, however, the researchers noted that if someone is depressed, they won’t necessarily find relief from eating large quantities of fish as the high concentration of Omega 3 fatty acid used in the study would not be available in an average diet.
The researchers are advising people to speak to their doctor if they are depressed and want to try a course of fish oil supplements.
The Montreal study was published in June 2010 in the online Journal of Clinical Psychiatry.