Mental health has become one of the most urgent public health issues worldwide, especially following the COVID-19 pandemic. A major new cross-country study published in PLOS Medicine in 2026 provides one of the most comprehensive views yet of how people with poor mental health experience healthcare systems across high-, middle-, and low-income countries. The research is based on the People’s Voice Survey and includes responses from more than 32,000 adults across 18 nations.
This blog summarizes the key findings in a clear, focusing on global mental health trends, healthcare access, patient experience, and health system performance.
The study analyzed data from adults in countries including the United States, United Kingdom, China, India, Kenya, Nigeria, Italy, Greece, South Africa, and several others. Participants were asked to self-rate their mental health, which was categorized as either poor or fair versus good to excellent.
Researchers then compared how people with poor mental health differed from others in terms of:
This approach allowed researchers to understand not only how common poor mental health is, but also how it shapes real-world healthcare experiences.
One of the most striking findings is how widespread poor mental health has become.
Across all 18 countries, about 19.5% of adults reported poor or fair mental health. However, this varied significantly:
Importantly, the study found no clear link between a country’s income level and mental health prevalence. This suggests that mental health challenges are not limited to wealthier nations and are influenced by complex social, cultural, and environmental factors.
The study revealed consistent demographic patterns:
Women were more likely than men to report poor mental health in nearly all countries. This gap was especially noticeable in Latin America, parts of Europe, and the United States.
There was no single global pattern, but:
These findings suggest that mental health affects all age groups, though local demographic and cultural factors influence patterns.
A key finding is the close relationship between mental and physical health.
Compared to people with good mental health, those with poor mental health were:
About 41.8% of people with poor mental health reported chronic conditions, compared to 23.8% among others.
This reinforces the idea that mental and physical health are deeply interconnected and should not be treated separately in healthcare systems.
One of the most concerning findings is the global inequality in access to mental healthcare.
Among people reporting poor mental health:
This shows a large global treatment gap, particularly in lower-income regions where mental health services are often under-resourced.
Across almost all countries, individuals with poor mental health reported:
They were also less likely to have a regular doctor or healthcare facility they could rely on.
These patterns suggest that mental health status influences not just internal wellbeing but also how people interact with healthcare services overall.
The study also examined trust and confidence in healthcare systems.
People with poor mental health were less likely to believe that:
However, views about whether health systems were improving were mixed and varied by country.
This reduced confidence can have long-term consequences, including delayed care-seeking and lower engagement with preventive services.
Researchers highlight several likely explanations for these global patterns:
These factors combine to create large disparities in care access and quality.
This study has important implications for global health policy:
It affects countries at all income levels, not just wealthy nations.
People with mental health conditions often have chronic physical illnesses, making integrated care critical.
In many countries, most people with mental health needs receive no formal care.
Patient experience, trust, and accessibility are just as important as clinical care.
While the study is large and globally representative, there are some limitations:
Despite these limitations, the study provides one of the most detailed global snapshots of mental health and healthcare experience to date.
The findings highlight a clear global pattern: people with poor mental health face worse health outcomes, reduced access to care, and lower confidence in health systems. These challenges are seen across countries at all income levels, though they are especially severe where healthcare resources are limited.
Improving mental health care will require stronger integration into primary care, better access to treatment, and improved patient experience. As mental health conditions continue to rise globally, health systems must adapt to meet growing demand in a more equitable and effective way.
Kruk ME, Kapoor NR, Arsenault C, et al. (2026). Health system use and experience among people with poor mental health: A cross-sectional analysis of the People’s Voice Survey in 18 countries.
PLOS Medicine.
This article is a summary of peer-reviewed research for informational and educational purposes only. It does not provide medical advice, diagnosis, or treatment. Readers should consult qualified healthcare professionals for personal medical concerns or mental health conditions.
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