[1] Univ Western Ontario, Fac Hlth Sci, Sch Occupat Therapy, Elborn Coll, 1201 Western Rd,Room 2547, London, ON N6G 1H1, Canada
[2] ParticipACTION, 77 Bloor St West,Suite 1205, Toronto, ON M5S 1M2, Canada
[3] Univ Western Ontario, Hlth & Rehabil Sci Program, Fac Hlth Sci, London, ON N6A 5B9, Canada
[4] Univ Western Ontario, Dept Geog & Environm, London, ON N6G 1H1, Canada
[5] Univ Western Ontario, Fac Hlth Sci, Sch Hlth Studies, London, ON N6G 1H1, Canada
[6] Lawson Hlth Res Inst, Childrens Hlth Res Inst, London, ON N6C 2R5, Canada
[7] Univ Western Ontario, Dept Pediat, London, ON N6G 1H1, Canada
[8] Univ Western Ontario, Dept Epidemiol & Biostat, London, ON N6G 1H1, Canada
[9] Coll Family Phys Canada, Prof Dev & Practice Support, Member Interest Grp Sect, Mississauga, ON L4W 5A4, Canada