The 2024 Global Burden of Disease (GBD) study from the Institute for Health Metrics and Evaluation (IHME) collected the prevalence of five types of mental illnesses worldwide in 2021.
Findings processed by Our World in Data show that the highest prevalence was for anxiety disorders, reaching 4.4% of the global population in 2021.
Of the five types of illnesses, anxiety disorders were the only ones to show an increase in 2021. Previously, the prevalence was 4.3% in 2020.
Second was depressive disorders at 4%. Bipolar disorder followed in third place with a proportion of 0.5%.
Next were schizophrenia at 0.3% and eating disorders at 0.2%.
Our World in Data states that this research sample is based on estimates of the number of people suffering from each mental illness in a given year, both diagnosed and undiagnosed, based on representative surveys, medical data, and statistical modeling.
Data from the World Health Organization (WHO) indicates that 970 million people live with a mental disorder. Anxiety and depression are indeed the most common.
Mental disorders also cause 1 in 6 people to live with a disability. The WHO states that people with severe mental health conditions die 10 to 20 years earlier than the general population.
"And having a mental health condition increases the risk of suicide and experiencing human rights violations," writes the WHO in its website.
The impact on the economic condition of those suffering from mental illness is also significant. According to the WHO, the economic consequences of these illnesses are a loss of productivity that significantly exceeds the direct cost of treatment.
(Read: Easy Anger, the Most Common Mental Health Issue Experienced by Indonesian Citizens)