Manitoba Health's latest patient safety report shows the number of critical incidents in the province is down.

Critical incidents are unintended incidents during the course of health-care delivery in which harm is caused to a patient.

The number of reported critical incidents was 526 in 2011-2012, down from 649 in 2009-2010, according to the province's report.

Most of the critical incidents last year, 52 per cent, were falls, while 37 per cent were the result of things such as errors in diagnosis or delays in treatment.

Deaths are also on the decline: In 2010-2011, 14 per cent of critical incidents resulted in death, while last year the rate was 10 per cent. Fifty-four patients died last year.

In one case, there was a delay in treating a patient with septic shock in emergency. The patient died several days later in intensive care.

In another, a patient complaining of chest pain was discharged from emergency after an examination turned up negative.

The patient collapsed at home and was successfully defibrillated by first responders, but died three days later in hospital.

In a news release, Health Minister Theresa Oswald said regional health authorities, Diagnostic Services Manitoba and CancerCare Manitoba will be more open and accountable to patients, now that those organizations must be accredited by an independent body.

"Posting accreditation results is about making these organizations more open and accountable to the patients, families and communities they serve," Oswald said in the release.