About the Authors

Merete Juul Sørensen

meresoer@rm.dk

Affiliation Regional Center for Child and Adolescent Psychiatry, Aarhus University Hospital, Aarhus, Denmark

Maiken Ina Siegismund Kjaersgaard

Affiliation Section for Biostatistics, Department of Public Health, Aarhus University, Aarhus, Denmark

Henrik Søndergaard Pedersen

Affiliation Research Unit for General Practice, Department of Public Health, Aarhus University, Aarhus, Denmark

Mogens Vestergaard

Affiliations Research Unit for General Practice, Department of Public Health, Aarhus University, Aarhus, Denmark, Section for General Medical Practice, Department of Public Health, Aarhus University, Aarhus, Denmark

Jacob Christensen

Affiliations Department of Neurology, Aarhus University Hospital, Aarhus, Denmark, Department of Clinical Pharmacology, Aarhus University Hospital, Aarhus, Denmark

Jørn Olsen

Affiliation Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark

Erik Parner

Affiliation Section for Biostatistics, Department of Public Health, Aarhus University, Aarhus, Denmark

Lars Henning Pedersen

Affiliations Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark, Institute of Clinical Medicine—Obstetrics and Gynaecology, Aarhus University, Aarhus, Denmark

Bodil Hammer Bech

Affiliation Section for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark

Competing Interests

Merete Juul Sørensen, Maiken Ina Siegismund Kjaersgaard, Bodil Hammer Bech, Henrik Søndergaard Pedersen, Mogens Vestergaard, Jørn Olsen, Lars Henning Pedersen and Erik Parner have no competing interests. Jakob Christensen reported receiving honoraria for serving on the scientific advisory boards of UCB Nordic and Eisai AB; receiving lecture honoraria from UCB Nordic and Eisai AB; being involved in clinical trials initiated by UCB Nordic, Eisai, Pfizer and Novartis, and receiving travel funding from UCB Nordic. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MJS MISK MV JO EP JC BHB LHP. Analyzed the data: MISK HSP. Wrote the paper: MJS MISK HSP MV JO EP JC BHB LHP.