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Infant mortality


Sources: Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency – Vital statistics in the UK: births, deaths and marriages


  • The infant mortality rate is calculated based on the number of deaths under 1 year per 1,000 births. The chart shows the infant mortality rate in the United Kingdom from 1930 to 2019.
  • The infant mortality rates for the United Kingdom are calculated by including births in Northern Ireland to non-residents in the denominator.
  • Death figures are based on deaths registered rather than deaths occurring in a calendar year.


Key dates 
1939 - 1945Second World War
National Health Service Act
Came into effect on 5 July 1948.