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Article History

Received: 17 February 2022

Accepted: 27 July 2022

First Online: 5 August 2022

Declarations

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: All methods were carried out in accordance with the World Medical Association Declaration of Helsinki ethical principles for medical research involving human subjects, and in accordance with local health and university regulations and guidelines. The study protocol was approved by the Sydney Local Health District Ethics Committee; reference number HREC/13/CRGH/67. Site Specific Approvals were sought at each hospital site. The study has also been approved by Human Ethics Committee at University of Queensland and University of Sydney. For Medicare and Pharmaceutical Benefit Scheme data linkage ethical approval was received by Department of Ethics, Department of Health and Aging, Department of Health Services and the Ethics committee at Australian Institute of Health and Welfare. The process of obtaining informed verbal consent to participate in the study and informed written consent for health data linkage was approved by Sydney Local Health District Ethics Committee, Human Ethics Committees at University of Queensland and University of Sydney, Department of Ethics, Department of Health and Aging, Department of Health Services, and the Ethics committee at Australian Institute of Health and Welfare. Eligible participants were invited to take part in the study by letter. Informed consent to participate was obtained verbally via phone for those who did not opt out.

: Not applicable.

: The NSW State Insurance Regulatory Authority funded some or all of the salaries of Christopher Papic, Ashley Craig, and Ian D Cameron. We declare that the other authors (Annette Kifley, Genevieve Grant, Alex Collie, Ilaria Pozzato, Belinda Gabbe, Sarah Derrett, Trudy Rebbeck, and Jagnoor Jagnoor) do not have any competing financial or non-financial interests.