About the Authors

Kjeld Poulsen

KjPo@Steno.dk

Affiliation Steno Health Promotion Center, Gentofte, Denmark

Bryan Cleal

Affiliation Steno Health Promotion Center, Gentofte, Denmark

Thomas Clausen

Affiliation National Research Centre for the Working Environment, Copenhagen, Denmark

Lars L. Andersen

Affiliation National Research Centre for the Working Environment, Copenhagen, Denmark

Competing Interests

KP and BC are employed by Steno Diabetes Center A/S, a research hospital working in the Danish National Health Service and owned by Novo Nordisk A/S. This study was funded by Steno Diabetes Center A/S, which receives part of its core funding from unrestricted grants from the Novo Foundation and Novo Nordisk A/S. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: KP BC TC LLA. Performed the experiments: KP LLA. Analyzed the data: KP LLA. Wrote the paper: KP BC TC LLA.