Age-specific and year of birth changes in hospital admissions during a period of unexplained higher deaths in England

Published:October 04, 2017DOI:


      • Since 2011 the UK has experienced a period of unexplained higher medical admissions and deaths.
      • Population-adjusted admissions by age band show inexplicable age-specific changes.
      • Statistically significant changes in deaths are associated with the patients' year of birth.
      • Possible explanations for these age and year of birth specific changes are discussed.



      Policy makers have assumed that increase in medical demands and costs are attributable to the increasing age of the population and the inability of health and social care to limit demand.


      Analysis of data obtained from NHS and Office of National Statistics.


      Population-adjusted age-specific patterns in medical admissions and deaths have increased over the period 2012/13 to 2015/16 in the NHS in England. The growth is both age and year of birth specific, and the youngest appear to be worst affected. Overall there has been a growth of 30,870 admissions (15% increase) in 25–29 year olds compared to 119,280 extra admissions (7% increase) for 70–74 year olds. Admissions of younger medical patients have also increased more so than for pneumonia, and the increase in all-cause mortality appears to be influenced by the patients' year of birth.


      In England, medical admissions and deaths (all-cause mortality) have recently displayed very high unexplained growth. The fact that these are associated with patient year of birth suggests that the cause(s) may be related to infectious or other environmental factors encountered earlier in life.


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