[1] Western Norway Univ Appl Sci, Dept Hlth & Caring Sci, Bergen, Norway
[2] Univ Bergen, Dept Global Publ Hlth & Primary Care, Bergen, Norway
[3] Univ Bergen, Dept Clin Med, Bergen, Norway
[4] Haukeland Hosp, Bergen, Norway
[5] Karolinska Inst, Inst Environm Med, Stockholm, Sweden
[6] Australian Ctr Behav Res Diabet, Melbourne, Australia
[7] Norwegian Univ Sci & Technol, HUNT Ctr Mol & Clin Epidemiol, Dept Publ Hlth & Nursing, NTNU, Trondheim, Norway
[8] Trondheim Reg & Univ Hosp, St Olavs Hosp, Dept Endocrinol, Trondheim, Norway
[9] Norwegian Univ Sci & Technol, HUNT Res Ctr, Dept Publ Hlth & Nursing, NTNU, Levanger, Norway