[1] Simon Fraser Univ, Dept Gerontol, Vancouver, BC, Canada
[2] Univ Oxford, Oxford Inst Populat Ageing, Oxford, England
[3] McGill Univ, Dept Epidemiol Biostat & Occupat Hlth, Montreal, PQ, Canada
[4] McGill Univ Hlth Ctr, Res Inst, Montreal, PQ, Canada
[5] Dalhousie Univ, Fac Med, Dept Community Hlth & Epidemiol, Halifax, NS, Canada
[6] Dalhousie Univ, Fac Med, Div Geriatr Med, Halifax, NS, Canada
[7] McMaster Univ, Fac Hlth Sci, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada
[8] McMaster Univ, McMaster Inst Res Aging, Hamilton, ON, Canada
[9] Univ Calgary, Div Geriatr Med, Cumming Sch Med, Calgary, AB, Canada
[10] Univ Calgary, OBrien Inst Publ Hlth, Calgary, AB, Canada
[11] McMaster Univ, McMaster Inst Res Aging, Labarge Ctr Mobil Aging, Hamilton, ON, Canada