About the Authors

Marika Kaakinen

marika.kaakinen@oulu.fi

Affiliations Institute of Health Sciences, University of Oulu, Oulu, Finland, Biocenter Oulu, Oulu, Finland

Francesca Ducci

Affiliations Psychological Medicine, Institute of Psychiatry, King's College, London, United Kingdom, Division of Mental Health, St. George's University of London, London, United Kingdom

Mikko J. Sillanpää

Affiliations Biocenter Oulu, Oulu, Finland, Department of Mathematical Sciences, University of Oulu, Oulu, Finland, Department of Biology, University of Oulu, Oulu, Finland

Esa Läärä

Affiliation Department of Mathematical Sciences, University of Oulu, Oulu, Finland

Marjo-Riitta Järvelin

Affiliations Institute of Health Sciences, University of Oulu, Oulu, Finland, Biocenter Oulu, Oulu, Finland, Department of Life Course and Services, National Institute for Health and Welfare, Oulu, Finland, Department of Epidemiology and Biostatistics, MRC-HPA Centre for Environment and Health, Imperial College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MK FD MJS EL MRJ. Analyzed the data: MK. Contributed reagents/materials/analysis tools: MRJ. Wrote the paper: MK FD MJS EL MRJ.