[1] Univ Sydney, Childrens Hosp, Westmead Clin Sch, Sydney 2145, Australia
[2] Univ Sydney, Charles Perkins Ctr, Sydney 2006, Australia
[3] Flinders Univ S Australia, Caring Futures Inst, Coll Nursing & Hlth Sci, Adelaide 5042, Australia
[4] Childrens Hosp Westmead, Inst Endocrinol & Diabet, Sydney 2145, Australia
[5] Childrens Hosp Westmead, Kids Res, Sydney 2145, Australia
[6] La Trobe Univ, Sch Psychol & Publ Hlth, Melbourne 3086, Australia
[7] Univ Sydney, Natl Hlth & Med Res Council Clin Trials Ctr, Sydney 2050, Australia
[8] Univ Cambridge, MRC Epidemiol Unit, Cambridge CCB2 0QQ, England
[9] Univ Leeds, Leeds Inst Hlth Sci, Leeds LS2 9JT, England
[10] Univ Sydney, InsideOut Inst Eating Disorders, Charles Perkins Ctr, Sydney 2006, Australia
[11] Univ Ghent, Dept Dev Personal & Social Psychol, B-9000 Ghent, Belgium
[12] Washington Univ St Louis, Sch Med, St Louis, MO 63110 USA
[13] Childrens Hosp Westmead, Weight Management Serv, Sydney 2145, Australia