1. Section for Epidemiology and Social Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,
2. Department of Food and Nutrition, and Sport Science, University of Gothenburg, Gothenburg, Sweden,
3. Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,
4. Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,
5. Section for Occupational and Environmental Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,
6. Medical Evidence and Observational Research Centre, Global Medical Affairs, AstraZeneca Gothenburg, Mölndal, Sweden and
7. Department of Biostatistics, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway