[1] Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden
[2] GGZ Rivierduinen Eating Disorders Ursula, Leiden, South Holland, Netherlands
[3] Univ N Carolina, Dept Biostat, Chapel Hill, NC 27599 USA
[4] Univ N Carolina, Sch Social Work, Chapel Hill, NC 27599 USA
[5] Univ N Carolina, Dept Psychiat, CB 7160,101 Manning Dr, Chapel Hill, NC 27599 USA
[6] Curtin Univ, Sch Populat Hlth, Discipline Psychol, Perth, WA, Australia
[7] Univ Western Australia, Sch Med, Div Paediat, Perth, WA, Australia
[8] Leiden Univ, Med Ctr, Dept Psychiat, Leiden, South Holland, Netherlands
[9] Univ N Carolina, Dept Nutr, Chapel Hill, NC 27599 USA