Wintzell, Viktor http://orcid.org/0000-0001-7759-0887
Svanström, Henrik
Melbye, Mads
Ludvigsson, Jonas F.
Pasternak, Björn
Kulldorff, Martin
Funding for this research was provided by:
Vetenskapsrådet (2016-01974)
Stiftelsen Frimurare Barnhuset i Stockholm
Karolinska Institutet Research Foundation
Karolinska Institute
Article History
Accepted: 7 October 2020
First Online: 26 October 2020
Declarations
:
: Open access funding provided by Karolinska Institute. This study was supported by the Swedish Research Council (2016-01974), Frimurare Barnhuset Foundation, and the Karolinska Institutet Research Foundation. Pasternak was supported by an investigator grant from the Strategic Research Area Epidemiology program at Karolinska Institutet. The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; or the decision to submit the manuscript for publication.
: J.F. Ludvigsson coordinates a study on behalf of the Swedish IBD quality register (SWIBREG) outside the submitted work. That study has received funding from Janssen corporation. H. Svanström reports consulting fees from Celgene and employment at IQVIA outside the submitted work. V. Wintzell, M. Melbye, B. Pasternak, and M. Kulldorff have no conflicts of interest to declare.
: No approval was needed because this was a register-based study.
: Not required because the analysis was based on secondary register data.
: All authors consented to publication.
: Not available.
: Not available.
: VW had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: VW, HS, BP, MK. Acquisition of data: BP. Analysis and interpretation of data: All authors. Drafting of the manuscript: VW. Critical revision of the manuscript for important intellectual content: All authors. Statistical analysis: VW. Obtained funding: BP. Study supervision: BP, MK.