[1] Institute of Health and Society,Department of General Practice
[2] University of Oslo,Department of Biostatistics and Epidemiology
[3] Oslo University Hospital,Department of Community Medicine
[4] Institute of Health and Society,National Centre for Suicide Research and Prevention, Institute for Clinical Medicine
[5] University of Oslo,Division of Epidemiology
[6] University of Oslo,Diabetes Research Centre, Faculty of Medicine
[7] Norwegian Institute of Public Health,Faculty of Health Sciences
[8] Oslo University Hospital,undefined
[9] Oslo University College,undefined