[1] UNSW, Fac Med, Discipline Psychiat & Mental Hlth, Sydney, NSW, Australia
[2] South Western Sydney Local Hlth Dist, Acad Unit Infant Child & Adolescent Psychiat, Liverpool, NSW, Australia
[3] La Trobe Univ, Olga Tennison Autism Res Ctr, Sch Psychol & Publ Hlth, Melbourne, Vic, Australia
[4] Ingham Inst Appl Med Res, Liverpool, NSW, Australia
[5] Univ Queensland, Cooperat Res Ctr Living Autism, St Lucia, Qld, Australia
[6] Univ Queensland, Cooperat Res Ctr Living Autism Autism CRC, St Lucia, Qld, Australia
[7] Univ Sydney, Fac Med & Hlth, Sch Med, Sydney, NSW, Australia
[8] South Western Sydney Local Hlth Dist, Ctr Res Evidence Management & Surveillance, Liverpool, NSW, Australia
[9] UNSW, Fac Med, Sch Populat Hlth, Sydney, NSW, Australia
[10] UNSW, Sch Publ Hlth & Community Med, Sydney, NSW, Australia
[11] UNSW, Fac Med, Sch Womens & Childrens Hlth, Populat Child Hlth Res Grp, Sydney, NSW, Australia
[12] Univ Sydney, Childrens Hosp Westmead Clin Sch, Sydney, NSW, Australia
[13] South Western Sydney Local Hlth Dist, Primary & Integrated Care Unit, Liverpool, NSW, Australia