Poor mental health potentiates poverty, and both undermine physical wellbeing.
Three-quarters of mental health patients in Catalonia live in economic vulnerability, with anxiety (31%), mood disorders (19%), and substance-related issues (13.5%) being most prevalent. Mental health patients double primary care visits compared to general population and show higher rates of comorbid physical conditions including obesity and cardiovascular risk.
- 76% of mental health patients earn under €18,000 annually, versus 61% of general population
- Anxiety disorders (31%), mood disorders (19%), substance-related issues (13.5%) most common diagnoses
- Antidepressant prescriptions rose 400% between 2010-2019 without parallel increase in diagnoses
- Mental health patients visit primary care doctors twice as often as general population
A Hospital Clínic Barcelona study of 1.4M people reveals 76% of mental health patients earn under €18,000 annually, versus 61% in general population, establishing bidirectional poverty-mental illness relationship.
Nearly half a million people in Catalonia are receiving treatment for mental health disorders, and a decade-long study from Hospital Clínic Barcelona has revealed something that complicates the common assumption that mental illness strikes randomly across all economic classes: it doesn't. Three out of four patients in mental health services earn less than 18,000 euros a year—compared to 61 percent of the general population living below that threshold. The researchers analyzed data on more than 1.4 million people between 2010 and 2019, and the pattern was unmistakable. Mental health problems cluster in economic vulnerability.
The most common diagnoses among the 473,812 patients treated through specialized mental health services were anxiety disorders, affecting 31 percent of them, followed by mood disorders at 19 percent and substance-related issues at 13.5 percent. This distribution remained consistent throughout the entire decade studied. But the economic profile was only part of the story. People with mental health diagnoses also carried higher rates of physical illness—they were heavier, more likely to smoke, and at greater risk for cardiovascular and respiratory disease. When researchers looked at these comorbidities, the pattern held: mental health patients had significantly more coexisting physical conditions than the rest of the population.
Eduard Vieta, head of psychiatry at Hospital Clínic and a leading researcher on the study, described the relationship between poverty and mental illness as bidirectional. It's not simply that poverty causes worse mental health, he explained. Rather, poor mental health actively deepens poverty, and both conditions undermine physical wellbeing. The cycle feeds itself. People with mental health diagnoses visited primary care doctors twice as often as those without psychiatric diagnoses, placing additional strain on a healthcare system already stretched thin.
The prescription data painted another picture worth examining. Between 2010 and 2019, Catalan doctors prescribed more than 67 million mental health medications. Antidepressants alone accounted for 15.7 million prescriptions—23 percent of the total—while benzodiazepines made up another 13.9 million. What caught researchers' attention was the trajectory: antidepressant prescriptions had increased by 400 percent over that decade, yet the number of mental health diagnoses had not risen proportionally. The gap raised questions about whether medication was being used as a substitute for other forms of treatment.
When asked whether the data suggested overprescribing, Vieta defended antidepressants as appropriate treatment for depression and other conditions when properly indicated. But he acknowledged room for improvement. If primary care doctors had better access to psychiatrists and if psychotherapy were more readily available, he suggested, some patients might improve through psychological intervention alone, without medication. The easier path—writing a prescription—was often taken instead. He advocated for better psychiatric training among primary care physicians and emphasized that he did not want to suggest patients were being poorly medicated when treatment was warranted. He also noted that antidepressant use had risen partly because people had become less stigmatized about seeking psychiatric care.
The researchers framed their findings as a foundation for better treatment planning. The data revealed not just the prevalence of mental illness in Catalonia but the socioeconomic reality of the people affected by it. That information could help clinicians tailor interventions, compare treatment approaches with other European countries, and ensure that diagnoses and medications were properly matched. The study suggested that mental health in Catalonia was not a neutral medical problem distributed evenly across society. It was concentrated among the economically vulnerable, compounded by physical health risks, and managed through a system that sometimes defaulted to medication when other resources might have served patients better. Understanding that reality was the first step toward changing it.
Notable Quotes
The relationship between poverty and mental illness is bidirectional—not only does poverty lead to worse mental health, but worse mental health deepens poverty, and both undermine physical wellbeing.— Eduard Vieta, head of psychiatry, Hospital Clínic Barcelona
If we had better access to specialists and more psychotherapy available, we could wait to see if psychological intervention alone helps before prescribing medication, because sometimes it's simply easier to write a prescription.— Eduard Vieta
The Hearth Conversation Another angle on the story
Why does the study focus so much on the economic side of mental illness? Couldn't the poverty just be a symptom of the illness itself?
That's the question Vieta was trying to answer. He's saying it's not one direction. Yes, untreated mental illness can cost you your job, your stability. But poverty itself—the stress, the insecurity, the lack of resources—actively creates mental illness. It's a trap that tightens both ways.
So when they found that antidepressant prescriptions went up 400 percent but diagnoses didn't, what does that actually mean?
It means doctors were prescribing more pills without more people being diagnosed with depression. That gap is the real story. It suggests that either the threshold for prescribing got lower, or that pills became the default answer when other help wasn't available.
Vieta seems to be defending antidepressants while also saying there's a problem. How do you read that?
He's being careful not to stigmatize medication, which is fair—antidepressants help people. But he's also saying that if therapists and specialists were more accessible, doctors wouldn't reach for the prescription pad so quickly. It's not that the drugs are wrong. It's that they became the only tool available.
What about the physical health piece—the obesity, the smoking, the heart disease risk?
That's the compounding. A person in poverty with anxiety doesn't just have anxiety. They're more likely to smoke to cope, less likely to exercise, more stressed, more likely to develop physical illness. The mental and physical collapse together, and the economic vulnerability makes it all worse.
So what actually changes because of this study?
That's the open question. The researchers are saying: here's the data. Now you know who's affected and how. The next step is whether the health system actually responds—more therapists, better training for primary care doctors, less reliance on pills as the first answer. The study is the diagnosis. The treatment is still to come.