About the Authors

Charlotte Björkenstam

charlotte.bjorkenstam@ki.se

Affiliations Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden, Department of Statistics, Monitoring, and Evaluation, National Board of Health and Welfare, Stockholm, Sweden

Jette Möller

Affiliation Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden

Gunilla Ringbäck

Affiliation Department of Statistics, Monitoring, and Evaluation, National Board of Health and Welfare, Stockholm, Sweden

Peter Salmi

Affiliation Department of Statistics, Monitoring, and Evaluation, National Board of Health and Welfare, Stockholm, Sweden

Johan Hallqvist

Affiliation Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden

Rickard Ljung

Affiliation Department of Molecular Medicine and Surgery, Stockholm, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CB JM JH RL. Performed the experiments: CB JM GR. Analyzed the data: CB JM GR PS JH RL. Contributed reagents/materials/analysis tools: CB JM RL. Wrote the manuscript: CB JM PS GR JH RL.