The study suggested a staggering 30,000 excess deaths could be implicated in slashed health and social care budgets.
An “unprecedented” spike in mortality rates across England and Wales in 2015 sparked the need for investigation.
The researchers from the London School of Hygiene and Tropical Medicine, University of Oxford and Blackburn with Darwen Borough Council said that 2015 saw the largest rise in mortality rates in 50 years.
A new research paper suggested 30,000 deaths were caused by NHS budget cuts
In their paper they wrote: "The long-term decline in mortality in England and Wales has reversed, with approximately 30,000 extra deaths compared to what would be expected if the average age-specific death rates in 2006 to 2014.
The teams looked at hospital waiting times, ambulance call out times, and cancelled operations to determine the deadly statistics.
The experts ruled out data errors, cold weather, and flu as potential causes for the lethal spike, concluding that the problems pointed towards failures in healthcare.
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The researchers pointed out a strong spike of mortality rates in 2015
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The evidence points to a major failure of the health system, possibly exacerbated by failings in social care
They stated: “The evidence points to a major failure of the health system, possibly exacerbated by failings in social care”.
"Our findings should be seen in the context of the worsening financial situation of the NHS"
"Since the 2010 election, the impact of cuts resulting from the imposition of austerity on the NHS has been profound.
An ageing population is also putting stress on public healthcare
The researchers pointed out that Britain’s ageing population was another factor placing stress on healthcare.
"With an ageing population, the NHS is ever more dependent on a well-functioning social care system.
"Yet, social care has also faced severe cuts, with a 17% decrease in spending for older people since 2009, whilst the number of people aged 85 years and over has increased by almost 9%."
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The research teams have called for more investigation into the matter
Co-author Professor Danny Dorling from the University of Oxford said: "It may sound obvious that more elderly people will have died earlier as a result of government cut backs, but to date the number of deaths has not been estimated and the government have not admitted responsibility."
The paper concluded: “Given the relentless nature of the cuts, and potential link to rising mortality, we ask why is the search for a cause not being pursued with more urgency?”