1. The Health Observatory, Discipline of Medicine, University of Adelaide, The Queen Elizabeth Hospital Campus, Woodville, South Australia, Australia
2. Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Woodville, South Australia, Australia
3. Adelaide Institute of Sleep Health, Flinders University of South Australia, c/o Repatriation General Hospital, Daw Park, South Australia, Australia
4. NHMRC Centre for Integrated Research and Understanding of Sleep (CIRUS), Woolcock Institute of Medical Research, Central Clinical School, University of Sydney, New South Wales, Australia
5. School of Medicine, Flinders University, Bedford Park, Adelaide, South Australia, Australia
6. Freemason's Centre for Men's Health, Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia
7. Population Research and Outcomes Studies, Discipline of Medicine, University of Adelaide, Adelaide, South Australia, Australia