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CIHI is a prescribed entity under section 45(1) of Ontario\u2019s Personal Health Information Protection Act, 2004 []. This act applies to health information custodians in Ontario, such as the Ministry of Health and Long-Term Care, hospitals and physicians. These entities can disclose personal health information to us without patient consent for the purposes of analysis and compiling statistical information for the management of the health system. After consultation with the local Research Ethics Board at Women\u2019s College Hospital, it was deemed that REB approval was not necessary.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.All authors have completed the ICMJE uniform disclosure form at  and declare: no support from any organization for the submitted work; no financial relationships with any organizations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"446"}}