Data and statistics

Causes of death
Ischaemic heart disease, stroke, chronic obstructive lung disease and lower respiratory infections have remained the top killers during the past decade. Chronic diseases cause increasing numbers of deaths worldwide.

Global Health Observatory

WHO's portal providing access to data and analyses for monitoring the global health situation

fact buffet

Life expectancy

70 yearsis the average life expectancy at birth of the global population in 2012.

Life expectancy at birth


74%of child deaths occur in Africa and South-East Asia.

Under-five mortality

Disability-adjusted life years (DALYs)

13%of DALYs in high-income countries in 2012 were caused by mental disorders.

DALY rates, by WHO region

Mortality and global health estimates

Essential health technologies

Essential medicines

Governance and aid effectiveness

Health financing

Health workforce

Service delivery

Health equity monitor

International Health Regulations (2005) Monitoring Framework

Women and health

Urban health


Risk factors

Health systems response

Infectious diseases

Global influenza virological surveillance

Meningococcal meningitis

Sexually transmitted infections (STIs)

Injuries and violence

Road safety

Violence against women

Substance use and mental health

Substance use disorders

Mental health

Environmental health

Millennium Development Goals (MDGs)

MDG 1: child underweight

MDG 4: child health

MDG 4: immunization

MDG 5: maternal and reproductive health


MDG 6: malaria

MDG 6: neglected tropical diseases

MDG 6: tuberculosis

MDG 7: water and sanitation

MDG 8: essential medicines