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Authors
Berglund, Malin
Olaison, Sara
Westman, Eva
Eriksson, P. O.
Steger, Lena
Bonnard, Åsa
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Funding
Funding for this research was provided by:
Karolinska Institute
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Article History
Received: 28 January 2023
Accepted: 15 October 2023
First Online: 26 October 2023
Declarations
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: The study was performed according to the Declaration of Helsinki, and ethical approval was received from the Swedish Ethical Review Authority (D-nr 2014/2203–31/4) including the waived need for informed consent due to the type of data, i.e., national quality register data. Written informed consent is not required by Swedish law for the collection of data from Swedish quality registers.
: Not applicable.
: All authors are members of the SwedEar steering committee. The collection of data from medical records was blinded to the preexisting data in SwedEar. All statistical analyses were performed by an external professional consultant.
