In May 2016, another study also concluded there was no evidence people were more likely to die in hospitals at the weekend. In August, internal Department of Health risk management documents were leaked. They described 13 major risks in delivering the "truly seven-day NHS" pledge promised by the Conservatives prior to the 2015 general election. These included a lack of staff and funding for the policy. The documents also stated no advance impact assessments had been made to show how the policy would affect the delivery of NHS services. Chief executive of NHS Providers Chris Hopson described the seven-day NHS plan as "impossible to deliver" due to a lack of funding and staffing. He also highlighted pressures on the NHS with 80% of acute hospitals in England in financial deficit compared to 5% in 2013 and an increase of missed A&E waiting time targets from 10% to 90% in the same time period. In May 2016, a report by the House of Commons public accounts committee criticised Hunt's plan for a seven-day NHS, saying "no coherent attempt" had made to understand staffing needs, the plan was "completely uncosted", and contained "serious flaws".