Professor Chris Ham, chief executive of the King's Fund, said the NHS was in much better shape than a decade ago.
"What we can say with confidence is that the NHS has moved out of intensive care and into active rehabilitation.
"It's on the road to real improvement to deliver world-class standards of care but it isn't there yet."
He said the next government would have to tackle the difficult challenge of building on the improvement and paying far greater attention to prevention of ill health, but with reduced investment.
http://news.bbc.co.uk/1/hi/health/8611234.stm