[1] Western Univ, Schulich Sch Med & Dent, London, ON, Canada
[2] Western Univ, Dept Med, Div Endocrinol & Metab, London, ON, Canada
[3] Western Univ, Dept Epidemiol & Biostat, London, ON, Canada
[4] St Josephs Hlth Care London, London, ON, Canada
[5] ICES, Toronto, ON, Canada
[6] Lawson Hlth Res Inst, London, ON, Canada
[7] Western Univ, Dept Med, Div Gen Internal Med, London, ON, Canada
[8] York Weight Loss & Internal Med, Sharon, ON, Canada
[9] Western Univ, Dept Med, Div Nephrol, London, ON, Canada
[10] Western Univ, Dept Epidemiol & Biostat, 800 Commissioners Rd E, London, ON N6A 5W9, Canada