The ONS report published on Tuesday said that Britain was the worst in a group of 20 nations in life expectancy rise for women in the five-year period from 2011 to 2016. It added that Britain was only second worst behind the United States when the same rate was estimated for men.
The report said rises in life expectancy for women from 2006 to 2011 was 12.9 weeks per year, adding that the rate dropped to 1.2 weeks per year from 2011 to 2016.
The report reiterated that many countries have seen a slow-down in life expectancy rise from 2011, except for Japan and some in Scandinavia, adding that Britain was the worst among the leading economies, Presstv reported.
The BBC said government austerity policies, including cuts to social care budgets in England, have played a part, according to an analysis on its website which involved academics.
However, the government has denied there is any proven link while rejecting calls for an enquiry.
Reports have suggested that achievements that helped boost life expectancy in Britain, like reducing smoking rates and improved treatment of infectious illnesses and conditions such as heart disease, have been undermined over the past years.
The ONS analysis said a significant increase in male life expectancy between 2001 and 2011 negatively affected the similar rate among women.
Sir Steve Webb, former Liberal Democrat Pensions Minister and director of policy at the insurance provider Royal London, said the government had to do more to understand the reasons for the drop in life expectancy rise.
“The UK has slumped from being one of the strongest performers when it comes to improving life expectancy to bottom of the league,” said Webb, adding “There is a real human cost behind these statistics and we urgently need to understand more about why this is happening.”