Correction: BMC Med Res Methodol 21, 277 (2021)

https://doi.org/10.1186/s12874-021-01427-2

Following publication of the original article [1], the authors noticed the incorrect affiliation 4 “Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Spain.” in the published online version of this article. It should be corrected as “Research group on Psychosocial risks, Organization of Work and Health (POWAH), Universitat Autònoma de Barcelona (UAB), Cerdanyola del Vallès, Spain.”. The original article has been updated.