South Australian Premier Jay Weatherill says he is "deeply sorry" for the abuse suffered by individuals at the now-closed Oakden nursing home.

Key points: Five individuals named in Oakden ICAC report for maladministration

Five individuals named in Oakden ICAC report for maladministration Former minister Leesa Vlahos criticised for deflecting responsibility for facility's failings

Former minister Leesa Vlahos criticised for deflecting responsibility for facility's failings 13 recommendations made, several dealing with facility's management structure

It follows the release of the Independent Commissioner Against Corruption's report which made damning findings of maladministration against five individuals and the public authority.

Commissioner Bruce Lander's 312-page report — titled "Oakden, A Shameful Chapter in South Australia's History" — made strident criticisms of State Government ministers, but stopped short of making maladministration findings against them.

Mr Lander's report makes 13 recommendations, several dealing with the management structure of the facility.

Premier Jay Weatherill said the Government accepted responsibility for the failings and was working to fix the aged care sector.

"To anybody who suffered abuse at the hands of workers at Oakden, I am deeply sorry," he said.

"To their family members, to their carers, to their loved ones, I am deeply sorry."

He said none of the five people named by Mr Lander in the report was now involved in the aged care facility to which Oakden residents were moved last year.

"The report makes maladministration findings against five public servants, none of whom are working at the new facility at Northgate," he said.

Former mental health minister Leesa Vlahos, who quit as a Labor candidate a fortnight ago, was severely criticised by Mr Lander.

"She did not lead in addressing the crisis. She followed," Mr Lander said in his report.

He described her as "deliberately untruthful", "generally unhelpful", a "very poor witness" and "belligerent and aggressive".

Mr Lander noted the former minister, who he said shouted at him, was also "sullen and surly", "inherently inconsistent" and "blamed others … wherever possible".

Opposition Leader Steven Marshall hits out at the state government's role

SA Opposition leader Steven Marshall says the ICAC report in Oakden proves Labor has been the worst government in the state's history. ( ABC News: Nick Harmsen )

"If anybody needs any proof whatsoever that this is the worst government in the state's history they can read about it today," Mr Marshall said.

"Labor has failed our most vulnerable citizens — they deserve to be sacked on March 17.

"Jay Weatherill has been out there running a protection racket for his incompetent ministers over an extended period of time.

"He was out there saying Leesa Vlahos was doing a great job shining a light on the dysfunction at Oakden, well that is completely in contrast with the evidence."

He said "every South Australian should be outraged".

"To have a senior cabinet minister appearing at an ICAC hearing shouting at the Commissioner is nothing short of disgraceful," he said.

"Surely cabinet has discussed this Oakden crisis, this is another example of this government's cover-up."

Commissioner Bruce Lander says senior people should have known what was happening at the facility. ( ABC News: Nick Harmsen )

Who was named in the report?

The Northern Adelaide Local Health Network

Mr Arthur Moutakis — Consumer Advisor and Consumer Liaison Officer, NALHN (2007 to 2017)

— Consumer Advisor and Consumer Liaison Officer, NALHN (2007 to 2017) Dr Russell Draper — Clinical Director of OPMHS, NALHN (2004 to 2017)

— Clinical Director of OPMHS, NALHN (2004 to 2017) Mr Kerim Skelton — Nursing Director of OPMHS (2007 to 2010), Nursing Director of Clinical Practice (2010 to 2016)

— Nursing Director of OPMHS (2007 to 2010), Nursing Director of Clinical Practice (2010 to 2016) Ms Merrilyn Penery — Nurse at Oakden (2000 to 2004), Clinical Nurse Consultant at Oakden (2005 to 2012), Clinical Practice Consultant, OPMHS (2012 to 2017)

— Nurse at Oakden (2000 to 2004), Clinical Nurse Consultant at Oakden (2005 to 2012), Clinical Practice Consultant, OPMHS (2012 to 2017) Ms Julie Harrison — Manager for Strategic Development, CNAHS (until December 2007), Acting Aged Care Director, CNAHS between (December 2007 to July 2010), Service Manager with responsibility for Oakden (July 2010 to January 2013), Service Manager for OPMHS and MHS (January 2013 to October 2014), Acting Director of the Mental Health Directorate (October 2014 to February 2015), Service Manager (February 2015 to January 2016)

Report stated Vlahos sought to deflect responsibility

Ms Vlahos stood down as lead candidate on Labor's Legislative Council ticket before the report was released.

Mr Lander said the findings against the individuals and the public authority did not "tell the entire story of responsibility for what went wrong at the Oakden facility".

"Senior people, including ministers and chief executives, who were responsible by virtue of their office for the delivery of care and services to the consumers at the Oakden facility, should have known what was going on but did not," Mr Lander said.

"I found this astonishing.

"Every South Australian should feel outraged at what happened at the Oakden Facility."

Vlahos sought to have her name suppressed

In an appendix to his report, Mr Lander outlined efforts by Ms Vlahos and Oakden employees Julie Harrison and Karim Goel to delay the publication of his investigation.

Leesa Vlahos announced she wouldn't contest the next election before the report was released. ( ABC News )

In a series of letters to the commissioner in January, Ms Vlahos's lawyers demanded Mr Lander provide an undertaking that he would not publish a report making adverse findings against Ms Vlahos without providing advance notice.

Mr Lander noted in his report that "Mrs Vlahos has informed me a number of times that she does not consent to my preparing a report that identifies her".

Ms Vlahos's lawyers also argued the commissioner did not have the power to publish his report, arguing it must be presented to the speaker and Parliament's president for publication.

Parliament went into recess late last year, ahead of the March election.

The arguments made by Ms Vlahos's four lawyers were ultimately rejected by Mr Lander.