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)
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
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
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)
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
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)
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
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)
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)
Self-perceived mental health status among Canadian adults as of 2022, by province
Percentage of adults in Canada who perceived their own mental health status as excellent or very good or fair or poor as of 2022, by province
Number of mental health consultations over telephone Japan FY 2013-2022
Number of people consulting about their mental health and welfare via phone calls in Japan from fiscal year 2013 to 2022 (in millions)
Mental health status of nurses compared to previous year in Canada in 2024
Distribution of mental health status of nurses in comparison to the past year in Canada in 2024
Mental health effects of social media for adults in the U.S. 2024, by gender
Share of adults in the United States on whether social media has more of a positive or negative effect on their mental health as of March 2024, by gender
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
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
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 young people in the U.S. using self-care methods for mental health 2023
Percentage of U.S. youth who currently use select self-care methods to manage their mental health as of 2023, by type
Share of young people in the U.S. who used select resources for mental health 2023
Percentage of U.S. youth who reported using select resources to address their mental health as of 2023, by type
Share of U.S. young people who faced barriers to receiving mental health care 2023
Percentage of U.S. youth who experienced select obstacles when receiving or trying to receive professional mental health care as of 2023
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)
Total healthcare costs for mental health in the Netherlands 2017-2023
Total costs for mental health care in the Netherlands from 2017 to in 2023 (in billion euros)
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
Share of young U.S. people who spoke to select people about their mental health 2023
Percentage of U.S. youth who talked to select people about their mental health or emotions in the past year as of 2023
Share of homeless adults in California who currently have mental health issues 2022
Percentage of homeless adults in California currently suffering from select mental health conditions as of 2022
Share of homeless adults in California who ever had mental health issues 2022
Percentage of homeless adults in California with select mental health conditions at some point in life as of 2022
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
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
Public opinion on mental health care in Chile 2023
Public opinion on mental health in Chile as of 2023
Public opinion on mental health in Argentina 2023
Public opinion on mental health in Argentina 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
Views on methods for managing a mental health crisis situation in the U.S. in 2023
Distribution of agreement with the following statements regarding a mental health crisis in the U.S. as of 2023
Mental health effects of social media for users in the U.S. 2024
Share of adults in the United States on whether social media has more of a positive or negative effect on their own mental health as of March 2024
U.S. adults on taking an extended mental health break from social media 2024
Share of adults in the United States who have ever taken an extended break from social media because it was having a negative effect on their mental health as of March 2024
U.S. adults on taking mental health breaks from social media 2024, by gender
Share of adults in the United States who have ever taken an extended break from social media due to it having negative effects on their mental health as of March 2024, by gender
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
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
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
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)
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
Leading mental health challenges reported among U.S. youth 2023, by type
Percentage of U.S. youth who experienced mental health challenges regularly as of 2023, by type
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
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