This work was supported by the National Health and Medical Research Council [grant number GNT0631947]. The salary of KLI was supported by a National Health and Medical Research Council fellowship and GBR was supported by a Matthew Flinders Research Fellowship and a National Health and Medical Research Council Senior Research Fellowship. The Zenadth Kes Health Partnership Project was made possible by the contribution of many people, including the diligent team from Torres and Cape Hospital and Health Service, James Cook University staff and students, Waiben and Mer community members, and the many people that generously gave their time to participate in the study.