1 Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden pontus.henriksson@liu.se.
2 Laboratory of Epidemiology and Population Sciences, National Institute on Aging, Baltimore, Maryland, USA.
3 Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
4 Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden.
5 Centre for Epidemiology and Community Medicine, Region Stockholm, Stockholm, Sweden.
6 Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.
7 Division of Preventive Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
8 Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
9 PROFITH "PROmoting FITness and Health through physical activity" research group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain.