[1] Univ British Columbia, St Pauls Hosp, Healthy Heart Program, Vancouver, BC V5Z 1M9, Canada
[2] Simon Fraser Univ, Sch Kinesiol, Burnaby, BC V5A 1S6, Canada
[3] Univ British Columbia, St Pauls Hosp, Ctr Hlth Evaluat & Outcome Sci, Vancouver, BC V5Z 1M9, Canada
[4] Univ British Columbia, St Pauls Hosp, Eating Disorders Program, Vancouver, BC V5Z 1M9, Canada