Eriksson, Helena P. http://orcid.org/0000-0002-0184-5078
Söderberg, Mia
Neitzel, Richard L.
Torén, Kjell
Andersson, Eva
Funding for this research was provided by:
AFA Försäkring (110104)
Swedish Initiative for Research on Microdata in the Social And Medical Sciences
University of Gothenburg
Article History
Received: 17 December 2019
Accepted: 28 August 2020
First Online: 6 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the Regional Ethical Board of Gothenburg (113-05) and Uppsala (2004:M-21).
: The study is based on registers with de-identified data. A part of the cohort has answered a questionnaire which contained information about the cohort study and how the information would be used in our register studies, they also received a separate letter with information about the cohort study and answering/sending the questionnaire to us has been regarded as informed consent. All approved by the Ethical Board.