A new study from Lund University in Sweden shows that even children with limited physical disabilities are at risk of developing mental issues later in life. Girls and adolescents from socio-economically vulnerable families are at greatest risk. The study was published in the reputable journal PLOS ONE.

With the help of national register data, Lund researchers conducted a follow-up of more than 600,000 children, with Swedish parents, born during the period 1987–1993. Of these, nearly 1,600 children had a form of birth injury—brachial plexus birth injury (BPBI)—which entails that the nerve fibers that lead to one of their arms are damaged at birth. The degree of the children’s residual impairments may vary, from barely noticeable to not being able to move their arm and hand.

Once the children were in their teens, the researchers could read the following from the registry database:

•Children with the physical birth injury used medication for mental health issues to a greater extent.
•Children from low-income families were more affected than children from families with higher socio-economic status.
•Girls were more affected than boys, and the problems became even more severe if the girls also came from families with low socio-economic status.

“Coming from a family with low socio-economic status is a high risk in itself,” says Elia Psouni, associate professor of developmental psychology at Lund University. “If you are also a girl, the risk that you will suffer from poor mental health is more than twice as high than if you are a boy from a wealthy family.”

Why are girls more affected?

“I think it has to do with trauma and discrimination on many levels,” says Elia Psouni. “In my previous research, I have seen how the experiences and consequences of school-related stress are greater in girls than in boys. As far as the children’s socio-economic background is concerned, there is already a lot of research showing that children from less fortunate families often receive less support. They often have poorer access to information and support from extended social networks and formal organizations.”

What do you hope the research will lead to?

“Increased awareness, which, in turn, will increase preparedness for and focus on mental well-being well into the late teenage years. That children will continue to receive help, even after the physical injury has been treated, by a professional team working closely with the patient.”