Executive Summary BackgroundThis Commission addresses several priority areas for psychiatry over the next decade, and into the 21st century. These represent challenges and opportunities for the profession to sustain and develop itself to secure the best possible future for the millions of people worldwide who will face life with mental illness. Part 1: The patient and treatmentWho will psychiatrists help? The patient population of the future will reflect general demographic shifts towards older, more urban, and migrant populations. While technical advances such as the development of biomarkers will potentially alter diagnosis and treatment, and digital tech-nology will facilitate assessment of remote populations, the human elements of practice such as cultural sensitivity and the ability to form a strong therapeutic alliance with the patient will remain central. Part 2: Psychiatry and health-care systemsDelivering mental health services to those who need them will require reform of the traditional structure of services. Few existing models have evidence of clinical effectiveness and acceptability to service users. Services of the future should consider stepped care, increased use of multidisciplinary teamwork, more of a public health approach, and the integration of mental and physical health care. These services will need to fit into the cultural and economic framework of a diverse range of settings in high-income, low-income, and middle-income countries. Part 3: Psychiatry and societyIncreased emphasis on social interventions and engagement with societal expectations might be an important a ea fo ps hiat s de elop e t. This ould e o pass ad o a fo the ights of individuals living with mental illnesses, political involvement concerning the social risk factors for mental illness, and, on a smaller scale, work with families and local social networks and communities. Psychiatrists should therefore possess communication skills and knowledge of the social sciences as well as the basic biological sciences. Part 4: The future of mental health lawMental health law worldwide tends to be based on concerns about risk rather than the protection of the rights of individuals experiencing mental illness. The United Nations Convention on the Rights of Persons with Disabilities, which states that compulsion based in whole or in part on mental disability is discriminatory, is a landmark document that should inform the future formulation and reform of mental health laws. An evidence-based approach needs to be taken: mental health legislation should mandate mental health training for all health professionals; ensure access to good-quality care; and cover wider societal issues, particularly access to housing, resources, and employment. All governments should include a mental health impact assessment when drafting relevant legislation. Part 5: Digital psychiatry-enhancing the future of mental healthDigital technology might offer psychiatry the potential for radical change in terms of service delivery and the development of new treatm...

In the third article of a five-part series providing a global perspective on integrating mental health, Victoria Ngo and colleagues discuss the benefits and requirements of collaborative care models, where non-communicable disease and mental health care are integrated and provided in the primary care setting. Please see later in the article for the Editors' Summary

The prevalence of substance use is lower than Western countries and higher compared with a 1996 survey. The true population prevalence is probably higher due to underreporting. The demographic pattern reflects availability and accessibility to drugs.

These findings will inform the design of quantitative surveys aimed at estimating the prevalence of specific behaviors related to substance use among youth and potential avenues for prevention.

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