Recent research published in Affective Disorders Journal This suggests that children and young people with chronic illnesses are at increased risk of depression. This study provides evidence that physical health problems tend to be stronger predictors of depression in young people than social disadvantage or relationship problems. These findings demonstrate the need to incorporate mental health screening into the standard of care for young people.
Tony Hsin Tan, a professor of educational psychology at the University of South Florida, conducted the new study to better understand the different life circumstances that contribute to depression in young people. He wanted to find out which specific challenges played the biggest role in the progression and persistence of symptoms.
“I have a keen interest in the etiology of depression in children and adolescents. We know that in addition to genetic predisposition, negative life experiences (also called risk factors) also contribute to the development and maintenance of depression. So I wanted to know which of the life circumstances are more powerful,” Tan told PsyPost.
Thanks to a newly organized national data set, researchers were able to compare different types of risks and see which ones have the strongest impact. Depression among young people is a rapidly growing public health problem, increasing the need to identify its warning signs early.
To investigate this topic, scientists analyzed data from the 2022-2023 National Child Health Survey. The final sample included exactly 65,652 children and adolescents between the ages of 6 and 17 years. The sample was adjusted to accurately reflect the demographics of the nation’s 4,8352,311 youth through statistical weighting.
Caregivers provided information regarding whether a health care provider had currently diagnosed their child with depression. They also indicated whether the child had a current diagnosis of attention-deficit/hyperactivity disorder, commonly known as ADHD.
This study used a detailed measurement system to assess three different categories of childhood hardship. Each child received a score from 0 to 4 in each category based on the number of specific challenges they faced in their daily lives.
The first category is medical health risk, which measures the presence of a chronic physical health condition. This includes severe functional impairment, lifelong medical diagnoses, or general poor overall health.
The second category is social health risk, which assesses environmental and economic disadvantages. It captures hardships such as families’ inability to afford basic food and shelter, exposure to neighborhood violence, and experiences of discrimination based on race or disability.
The third category is relationship health risk, which assesses the child’s adverse childhood experiences. This includes parental divorce, domestic violence, or the presence of a caregiver suffering from severe stress, anger, or mental illness.
According to the data, approximately 5.4 percent of children and adolescents in the sample were currently diagnosed with depression. Meanwhile, 12.4% were diagnosed with ADHD, 28% faced medical health risks, 27% experienced social health risks, and 40% dealt with relationship health risks.
Researchers found that all four of these factors independently increased the likelihood of being diagnosed with depression. Children who experienced multiple difficulties across different categories were even more likely to be diagnosed with depression.
Having a chronic medical problem was more strongly associated with depression than being in poverty or experiencing parental divorce. For every additional medical health risk a child faced, the likelihood of being diagnosed with depression increased almost twice.
“We were surprised to find that social risks (e.g., living in poverty) and relationship risks (e.g., relationship problems with parents, parental divorce) were not as strong as medical health risks in predicting depressive status,” Tan said.
The study also tested a concept known as the diathesis-stress model. This psychological theory suggests that latent personal vulnerabilities, known as diathesis, interact with external life stresses to cause mental health disorders. This concept helps explain why two people who experience the exact same stressful event have different mental health outcomes.
In this study, ADHD and medical conditions were treated as internal vulnerabilities. On the other hand, social disadvantage and relationship difficulties were treated as external stressors.
This analysis confirmed that children with ADHD and medical problems are indeed more sensitive to the negative effects of social and relational stress. As the number of external stressors increased, depression rates rose more sharply in children who also had physical health problems or ADHD.
For example, for children with no relational health risks, the predicted rates of depression were very low. However, for children facing the four relationship health risks, depression rates jumped from 18% for children without ADHD to 33% for children with ADHD.
However, statistical modeling revealed that this complex interaction between vulnerability and stressors does not actually improve the ability to predict depression. A simple summation of independent risks, especially medical risks, was sufficient to accurately predict the likelihood of diagnosis.
Although the findings are informative, readers should be aware of several limitations. This study relied entirely on parent-reported diagnoses, which is subject to reporting bias and memory errors. Parents are not always fully aware of their child’s internal emotional state or official diagnostic history.
Additionally, data were collected at a single time point. This type of snapshot observation, known as a cross-sectional design, means the study cannot conclusively prove that medical problems cause depression. This only suggests that the two conditions often occur together in young people.
Another limitation is that this study grouped various health problems into one medical risk score. As a result, researchers were unable to determine exactly which medical problems most increased the risk of depression.
In the future, Tan plans to investigate interventions designed to help children and adolescents build resilience to these risks. He also intends to explore other large datasets to further investigate mental health trends in the American population.
These upcoming efforts aim to discover better ways to support the mental health of young people facing chronic physical health problems. Recognizing that physical illness takes a toll on the mind allows health care providers to provide more comprehensive support to families in need.
“We would like to thank the Child and Youth Health Data Resource Center for making the data and code publicly available.”
The study, “The Role of ADHD, Medical, Social, and Relationship Health Risks in Depression: Evidence from a Nationally Representative Sample of U.S. Children and Adolescents,” was authored by Tony Hsin Tan.
