John Elflein
Research expert covering health and health care
Detailed statistics
Leading health problems worldwide 2023
Detailed statistics
Health ranking of countries worldwide in 2023, by health index score
Detailed statistics
Countries with the highest prevalence of HIV in 2000 and 2023
Leading health problems worldwide 2023
Percentage of adults worldwide who stated select issues were the biggest health problems facing people in their country in 2023
Adults worldwide who often thought about their mental/physical wellbeing as of 2022
Percentage of adults worldwide who often thought about their own mental and physical wellbeing as of 2022
Life expectancy at birth worldwide by region 2019
Average life expectancy at birth worldwide in 1990 and 2019, by region (in years)
Countries with the lowest life expectancy 2022
Ranking of the 20 countries with the lowest life expectancy as of 2022
Countries with the highest life expectancy 2022
Ranking of the 20 countries with the highest life expectancy as of 2022
Leading causes of disease burden worldwide in 2021
Leading causes of disability-adjusted life years (DALYs) worldwide in 2021 (in millions)
Worldwide top diseases 2024, by number of drugs in R&D
Leading 15 diseases worldwide by number of R&D products as of 2024
Number of cases of select infectious diseases worldwide in 2022
Number of reported cases of select infectious diseases worldwide in 2022
Number of vaccine-preventable disease cases worldwide 1980-2023, by disease
Reported cases of vaccine-preventable diseases worldwide from 1980 to 2023, by disease
Percentage of new cancer cases worldwide by type 2022
Percentage of new cancer cases worldwide in 2022, by type of cancer
Cancer deaths worldwide by major type 2022
Number of cancer deaths worldwide in 2022, by major type of cancer
Ischemic heart disease - deaths in selected countries 2020
Deaths from heart attacks and other ischemic heart disease in OECD countries in 2020 (per 100,000 population)
Diabetics worldwide 2021, 2030, and 2045
Estimated number of diabetics worldwide in 2021, 2030, and 2045 (in millions)
Diabetics prevalence worldwide 2021, 2030. and 2045
Percentage of diabetics in the global adult population in 2021, 2030, and 2045
Key figures on the global HIV/AIDS epidemic 2023
Key figures on the global HIV/AIDS epidemic as of 2023 (in millions)
Countries with the highest incidence rates of new HIV infections worldwide 2023
Countries with the highest incidence rates of new HIV infections worldwide as of 2023 (per 1,000 population)
Countries with the largest number of new malaria cases worldwide 2022
Leading 20 countries based on number of new malaria cases in 2022 (per 1,000 population at risk)
Incidence of tuberculosis worldwide by region 2021
Incidence of tuberculosis worldwide in 2021, by region (per 100,000 population)
Prevalence of treated end-stage renal disease in select countries worldwide 2021
Prevalence of treated end-stage renal disease in select countries worldwide in 2021 (per million population)
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
Adults worldwide who stated that stress is their country's leading health issue 2023
Percentage of adults worldwide who stated that stress was the biggest health problem facing people in their country in 2023
Most stressed countries/regions worldwide in 2023
Leading countries/region worldwide based on stress experienced in the previous day in 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
Percentage of the population that had anxiety disorders worldwide from 1990 to 2021
Share of the population worldwide who suffered from anxiety disorders from 1990 to 2021
Percentage of worldwide population that had a depressive disorder from 1990 to 2021
Percentage of people worldwide who suffered from depressive disorders from 1990 to 2021
Percentage of the population with bipolar disorder worldwide from 1990 to 2021
Share of the population who suffered from bipolar disorder worldwide from 1990 to 2021
Share of the population with schizophrenia worldwide from 1990 to 2021
Percentage of the population with schizophrenia worldwide from 1990 to 2021
Number of suicides in selected countries by gender 2021
Suicide rates in selected countries as of 2021, by gender (per 100,000 population)
World: annual birth rate, death rate, and rate of natural population change 1950-2100
Global annual birth rate, death rate, and rate of natural population change from 1950 to 2021, with projections until 2100 (in deaths per 1,000 inhabitants)
Countries with lowest death rates 2022
Ranking of the 20 countries with the lowest death rates as of 2022* (per 1,000 people)
Countries with the highest death rates in 2022
Ranking of the 20 countries with the highest death rates as of 2022* (per 1,000 people)
Death rates in select countries worldwide 2022
Death rates in selected developed and developing countries as of 2022* (per 1,000 population)
Rates of the leading causes of death worldwide in 1990
Rates of the 10 leading causes of death worldwide in 1990 (per 100,000 population)
Rates of the leading causes of death worldwide in 2021
Rates of the leading causes of death worldwide in 2021 (per 100,000 population)
Countries with the highest infant mortality rate 2024
Ranking of the 20 countries* with the highest infant mortality rate in 2024 (child deaths in the first year of life per thousand live births)
Countries with the lowest infant mortality rate 2024
Ranking of the 20 countries* with the lowest infant mortality rate in 2024 (child deaths in the first year of life per 1,000 live births)
Countries with highest mortality rate among children aged under five 2021
Countries with the highest mortality rate among children aged under 5 as of 2021 (per 1,000 live births)
Number of deaths worldwide from select risk factors in 2021
Annual number of deaths from select risk factors worldwide in 2021 (in millions)
Number of smoking-attributable deaths from tobacco-related diseases worldwide in 2019
Total number of smoking-attributable deaths from tobacco-related diseases worldwide in 2019 (in millions)
Countries with the highest share of daily smokers worldwide in 2019
Countries with the highest prevalence of daily smokers worldwide as of 2019
Key facts on alcohol-related deaths globally 2022
Key facts on alcohol-related deaths worldwide as of 2022
Obesity - prevalence in selected countries by gender 2022
Prevalence of obesity among adults in selected countries as of 2022, or latest year available, by gender*
Share of deaths in select countries worldwide attributed to obesity in 2021
Percentage of deaths attributed to obesity in select countries worldwide in 2021*
Global population share of illicit drug use 2021, by drug
Percentage of illicit drug use in global population in 2021, by drug type
Global number of people who inject drugs as of 2021, by region
Global estimated number of people who inject drugs as of 2021, by region
Countries with highest government health expenditure share 2020
Countries with the highest share of domestic governmental health expenditure in 2020*
Health expenditure as a percentage of GDP in select countries 2023
Health expenditure as a percentage of gross domestic product (GDP) in selected countries as of 2023
Per capita health expenditure in selected countries 2022
Per capita health expenditure in selected countries in 2022 (in U.S. dollars)
Countries with lowest governmental health expenditure 2020
Countries with the lowest share of governmental health expenditure in 2020*
Global spending on medicines 2010-2027
Global spending on medicines in 2010, 2022, and a forecast for 2027 (in billion U.S. dollars)
Country comparison in spending on medicine 2026
Projected spending on medicine of selected countries worldwide in 2026 (in billion U.S. dollars)
Global oncology spending 2013-2024
Global oncology spending from 2013 to 2024 (in billion U.S. dollars)
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