A major review will get under way today to find out how the details of more than 600 women who had abortions in the central North Island were mistakenly released to a reporter.
Lakes District Health Board chief executive Ron Dunham said he had spoken to the National Health IT Board over the weekend and would be looking at measures to put in place to stop such a breach from happening again.
He said an 0800 helpline set up for women who were concerned their privacy had been breached hadn't received any calls. He said the helpline was expected to stay as they made women aware of the service.
Mr Dunham said the coded data mistakenly released included the National Health Index (NHI) number, date of birth and ethnicity of 625 women who have used the board's termination of pregnancy service.
"It's extremely unlikely anyone can decipher the information [to identify someone]. I can't do it for instance ... I have no idea which patients were involved."