Accepted for Publication: February 25, 2022.
Published Online: March 7, 2022. doi:10.1001/jama.2022.3780
Corresponding Author: Kjetil Telle, PhD, Cluster for Health Services Research, Norwegian Institute of Public Health, Box 222, Skoyen, NO-0213 Oslo, Norway (firstname.lastname@example.org).
Author Contributions: Dr Telle 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.
Concept and design: Jørgensen, Nygård, Telle.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Jørgensen, Nygård, Telle.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Jørgensen, Kacelnik, Telle.
Administrative, technical, or material support: Telle.
Conflict of Interest Disclosures: None reported.
L , Bøås
H , Bråthen Kristoffersen
et al. Reduced risk of hospitalisation among reported COVID-19 cases infected with the SARS-CoV-2 Omicron BA.1 variant compared with the Delta variant, Norway, December 2021 to January 2022. Euro Surveill
. 2022;27(4):2200077. doi:10.2807/1560-7917.ES.2022.27.4.2200077PubMedGoogle ScholarCrossref