England

Children diagnosed with type 1 diabetes are at significantly higher risk of a number of mental health issues, including mood and anxiety disorders, a study from a team in the UK and the Czech Republic has found.

The findings emphasise the critical need for ongoing monitoring and care for the mental health of young individuals with type 1 diabetes.

According to the JDRF organisation, 8.7 million individuals worldwide suffer from type 1 diabetes, with over 400,000 in the United Kingdom alone. It is a chronic, life-threatening illness that is typically identified as a kid and has long-term consequences.

The findings highlight the urgent need for monitoring and support for the mental health of young people diagnosed with type 1 diabetes.

According to the charity JDRF, 8.7 million people are living with type 1 diabetes around the world, including over 400,000 people in the UK. It is a chronic, life-threatening condition, usually diagnosed in childhood, that has a life-long impact.

Currently, people with type 1 diabetes rely on a routine of finger-prick blood tests and insulin injections or infusions, because their pancreas no longer produces insulin itself, although recent developments in artificial pancreas technology are helping transform this care.

Previous studies have shown potential links between childhood-onset type 1 diabetes and a number of mental health disorders in adulthood. However, it is not clear whether these links can be best explained by the impacts of living with the condition and its treatment, or whether underlying common biological mechanisms may be implicated, for example, the impact of unstable blood sugar levels on the developing adolescent brain.

To help answer this question, a team of researchers turned to data from over 4,500 children with type 1 diabetes on a national register in the Czech Republic and from large-scale European DNA studies.

From the national register data, the researchers found that children diagnosed with type 1 diabetes - compared to children without the condition - were over twice as likely to develop a mood disorder and more than 50% more likely to develop an anxiety disorder. They were also more than four times more likely to develop behavioural syndromes including eating and sleep disorders

Conversely, children with type 1 diabetes were at a much lower risk of developing psychotic disorders, such as schizophrenia - almost half the risk compared to their peers.

The findings are consistent with the results from two other national register studies in Sweden and in Denmark, suggesting that the results would likely apply to other countries, too, including the UK.

The team used a statistical technique known as Mendelian Randomisation to probe causal links between type 1 diabetes and these various psychiatric disorders but found little evidence in support of a common underlying biological mechanism.

Tomas Formanek, a PhD student at the University of Cambridge and the National Institute of Mental Health, Klecany, Czech Republic, said: "Although we found a concerning increase in the risk of mental health problems among people living with type 1 diabetes, our study - and others before it - suggest this is unlikely to be the result of common biological mechanisms. This emphasises the importance of prevention and sustained attention to the mental health needs of children and young people with type 1 diabetes."

The researchers say that mental health problems in later life may be a result of children with type 1 diabetes being forced to make significant changes to their lives, with a constant focus on monitoring their food intake and a need to check blood sugar levels and administer insulin injections. This often leaves these children feeling excluded from social events and singled out by peers, teachers and even family members.

Dr Benjamin Perry from the Department of Psychiatry, University of Cambridge, said, "We know that people diagnosed with type 1 diabetes can experience 'diabetes distress'. This can include extreme frustration with blood sugars and feelings of isolation and can lead to burnout, hopelessness, and a feeling of lack of control. It's little wonder, then, that they are at risk of compounding mental health problems, spanning into their adult lives."

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Professor Peter Jones, also from the Department of Psychiatry, University of Cambridge, added: "Our findings emphasise the urgent need to support children diagnosed with type 1 diabetes, look out for signs of mental health problems and offer timely, expert help. That way, it may be possible to help these children early, before these problems fully take root."