Funding for this research was provided by:
University of Oslo
Article History
Accepted: 19 March 2023
First Online: 21 April 2023
Declarations
:
: Open access funding provided by University of Oslo (incl Oslo University Hospital). Data holders of Norwegian administrative data charge researchers for their work extracting and compiling the data sets before data are delivered to researchers. These fees were paid by Quantify Research for the data used in this study. Quantify Research received consultancy fees from Pfizer and Eli Lilly to extract data. No other funding support were provided for the manuscript.
: Johan A. Liseth Hansen and Thomas Fast are employees of Quantify Research, a consultancy firm providing services to public and private entities, including pharmaceutical companies. Knut Reidar Wangen declares no competing interests.
: Extracted Norwegian register data cannot be shared to anyone outside the study researchers by law. The data used in this study can be applied for through a new application to the data holders.
: Ethical approval was obtained from the regional ethical review board in South-East Norway (reference number: 28745).
: Not applicable.
: Not applicable.
: Provided upon reasonable request.
: JLH contributed to the study design, data acquisition, analysis, drafting of the manuscript and critical review. TF contributed to the study design, drafting of the manuscript and critical review. KRW contributed to the study design, drafting of the manuscript and critical review. All authors read and approved the final manuscript.