Recruitment
Eligible participants were identified through hospital records by a qualified dietitian familiar with oncology patients at the hospital. All eligible participants were approached during outpatient clinic visits by a researcher not involved in the care of the participant’s child. Potential participants were provided with information on the study, and invited to participate, with informed consent obtained in writing. Participants were recruited between April 2016 and February 2017. The study protocol was approved by the Sydney Children’s Hospital Network ethics committee (EC00130).