A patient safety charity said hospitals criticised in Sir Bruce Keogh's NHS review should have been investigated "years ago".
Peter Walsh, chief executive of Action Against Medical Accidents, said:
It is scandalous that patients have lost their lives needlessly or been caused misery due to failings in basic care and the regulatory system that failed to act on warning signals.
The Keogh report has come too late for those patients. The hospitals concerned should have been investigated years ago when high mortality rates were already known about.
In spite of the Mid Staffordshire Inquiry, Ministers are still refusing to accept key recommendations such as minimum staffing levels for wards and regulation of healthcare assistants. We hope this report helps change their minds.
More top news
Tonight will start off clear in many areas, but cloud will increase from the east overnight, bringing some light and patchy rain.
Defending champions Arsenal squeezed into the FA Cup final despite a spirited fightback from Reading, who forced extra-time
A detective who led investigations into the Valley Parade fire tells ITV News there is "unequivocal" evidence the disaster was an accident.