John Elflein
Research expert covering health and health care
Detailed statistics
Global use of illegal and legal drug types as of 2017
Detailed statistics
Global lifetime drug use of select types of drugs as of 2017
Detailed statistics
Number of Americans who used ecstasy in their lifetime 2009-2022
Prevalence of mental health disorders in Italy 2022, by diagnosis
Prevalence of patients treated for mental health disorders in Italy in 2022, by diagnosis-related group (per 10,000 inhabitants)
U.S. mental health workforce availability 2024, by state
Number of people per mental health provider in the U.S. in 2024, by state
Share of U.S. adults who had been treated by a mental health professional 2023
Percentage of adults in the United States who had ever received treatment or therapy from a psychologist or other mental health professional as of 2023
Mental health facilities in the U.S. 2022, by operation type
Number of mental health facilities in the U.S. in 2022, by operation type
Reasons for not receiving mental health services among U.S. adults 2022
Reasons for not receiving mental health services among U.S. adults in 2022*
Receipt of mental health services among U.S. adults by level of illness 2022
Receipt of mental health services in the past year among U.S. adults in 2022, by level of mental illness
Main reasons students seek more mental health counseling in North America 2023
Top five reasons students were seeking more mental health counseling or therapy in North America as of 2023
Percentage of the world population with select mental health disorders in 2021
Percentage of the global population that suffered from select mental health disorders in 2021
Mental health treatment facilities by setting of services in the U.S. 2022
Number of mental health treatment facilities in the U.S. in 2022, by service setting
NHS workforce: number of mental health nurses in HCHS 2009-2023
Total number of mental health nurses in the NHS Hospitals and Community Health Service (HCHS) workforce in England from 2009 to 2023
Mental health service use by U.S. adults 2002-2022, by type of care
Mental health service use in the past year among U.S. adults from 2002 to 2022, by type of care
Mental health facilities offering programs for specific client groups U.S. 2022
Percentage of U.S. mental health facilities offering treatment programs for specific client groups in 2022
Number of mental health/substance abuse social workers employed by U.S. state 2023
Number of mental health and substance abuse social workers employed in the United States in 2023, by state
Mental health service use in the U.S.2022, by type of care
Mental health service use in the past year among U.S. adults in 2022, by type of service
Share of adults who had a mental health need and social need worldwide 2023
Share of adults who had reported a mental health need and at least one social need in the past 12 months in selected high-income countries in 2023
Share of children unable to receive mental health care in the U.S. in 2022, by state
Share of children who could not receive or found it difficult to get care for their mental health needs in the U.S. in 2022, by state
Mental health treatment or counseling among adults in the U.S. 2002-2022
Number of U.S. adults who received mental health treatment or counseling in the past year from 2002 to 2022 (in millions)
Number of mental health and welfare consultations Japan FY 2022, by reason
Number of people consulting about their mental health and welfare in Japan in fiscal year 2022, by reason (in 1,000s)
Leading reasons LGBTQ youth in the U.S. did not get mental health help 2023
Percentage of U.S. LGBTQ youth who wanted mental health care but were unable to get it for select reasons as of 2023
Amount of mental health care facilities in South Korea 2022, by type
Total number of mental health care facilities in South Korea in 2022, by type
Public opinion on mental health in Spain 2023
Public opinion on mental health in Spain as of 2023
Public opinion on mental health care in Colombia 2023
Public opinion on mental health in Colombia as of 2023
Public opinion on mental health care in Brazil 2023
Public opinion on mental health in Brazil as of 2023
Perceptions about various aspects of mental health in Europe in 2023
Distribution of agreement on the following statements about various aspects of mental health in Europe in 2023
Public opinion on mental health in Argentina 2023
Public opinion on mental health in Argentina as of 2023
Public opinion on mental health care in Chile 2023
Public opinion on mental health in Chile as of 2023
Types of mental health resources desired by U.S. employees in 2023, by generation
Share of types of mental health resources employees want their workplace to provide in the United States in 2023, by generation
Share of young population self-reporting mental health issues in the Netherlands 2022
Share of young population who self-reported suffering with selected mental health problems in the Netherlands in 2022
Primary mental health issues among U.S. college students 2023
Percentage of mental health clinicians who stated select issues were the top concerns of their college student patients during the 2022-2023 academic school year
Availability of mental health services in Argentina as of 2021
Access to mental health treatment in Argentina as of 2021
Number of mental health consultations Japan FY 2022, by contact method
Number of people consulting about their mental health and welfare at municipalities in Japan in fiscal year 2022, by contact method (in 1,000s)
Share of U.S. adults who received mental health treatment 2022, by illness status
Percentage of U.S. adults who received mental health treatment in 2022, by mental illness status*
Availability of mental health services in health facilities in Ghana 2022, by type
Availability of mental health and neurological services in health facilities in Ghana in 2022, by facility type
Rate of mental health patients in local facilities in Italy 2022, by diagnosis
Rate of mental health patients in local facilities in Italy in 2022, by diagnosis-related group (per 10,000 inhabitants)
Share of Canadians who talked to a mental health professional in 2022
Percentage of Canadians who talked to select health care professionals about their mental health in the past 12 months as of 2022, by mental disorder status
Share of Canadians who talked to a mental health professional, 2022, by care format
Percentage of Canadians who talked to select health care professionals about their mental health in the past 12 months as of 2022, by format of care delivery
Adults who had unmet needs for mental health treatment in the U.S. in 2022, by state
Share of adults with any mental illness who reported unmet need for required treatment in the U.S. in 2022, by state
Total mental health funding by National Institutes for Health 2013-2025
Total mental health funding by the National Institutes for Health (NIH) from FY 2013 to FY 2025 (in million U.S. dollars)
Share of U.S. Hispanic adults receiving mental health treatment 2002-2022
Percentage of U.S. Hispanic or Latino adults who received mental health treatment or counseling in the past year from 2002 to 2022
Hospitalizations among U.S. college students receiving mental health help 2010-2023
Percentage of college students in the U.S. that were receiving mental health services and had been hospitalized for mental health concerns from 2010 to 2023, by year
Percent of Canadians perceiving mental health as fair or poor 2003-2022
Percentage of Canadians who perceived their mental health as fair or poor from 2003 to 2022
Number of mental health consultations at health care centers Japan FY 2013-2022
Number of people consulting at public health care centers or municipalities regarding mental health and welfare in Japan from 2013 to 2022 (in 1,000s)
Reasons for ending mental health services among U.S. college students 2022-2023
Percentage of U.S. college students that terminated their mental health services due to select reasons according to clinicians during the 2022-2023 academic year
Top U.S. states with the highest percentage of poor mental health among adults 2022
U.S. states with the highest percentage of adults reporting poor mental health as of 2022*
Number of Canadians perceiving their mental health as fair or poor 2003-2022
Number of Canadians who perceived their mental health as fair or poor from 2003 to 2022
Adults worldwide who said mental health is their country's leading health issue 2023
Percentage of adults worldwide who stated that mental health was the biggest health problem facing people in their country in 2023
Share of U.S. adults receiving mental health treatment by insurance status 2022
Percentage of U.S. adults who received mental health treatment in 2022, by health insurance status
Number of patients treated in mental health wards in Italy 2022, by age group
Number of patients treated in mental health departments in Italy in 2022, by age group
Number of patients treated in mental health wards in Italy 2022, by region
Number of patients treated in mental health wards in Italy in 2022, by region
Share of U.S. adults who felt their mental health was good 2023
Percentage of adults in the United States who reported their mental health as excellent, very good, good, fair, or poor as of 2023
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