[1] Mackay Hosp & Hlth Serv, Mackay Inst Res & Innovat MIRI, Mackay, Qld 4740, Australia
[2] Univ Queensland, Sch Publ Hlth, Herston, Qld 4006, Australia
[3] Mackay Hosp & Hlth Serv, Emergency Dept, Mackay, Qld 4740, Australia
[4] Royal Brisbane & Womens Hosp, Emergency & Trauma Ctr, Herston, Qld 4006, Australia
[5] 475 Bridge Rd, Mackay, Qld 4740, Australia