An estimated 11–32% of the global disease burden is due to surgically correctable illnesses. Lancet Commission on Global Surgery estimated that 5 billion people do not have adequate access to safe affordable surgical care when needed. Contrary to belief, investing in surgical services in low- and middle-income countries (LMICs) is affordable, saves lives, and promotes economic growth. Global Surgery is defined as an area of study, research, practice, and advocacy that seeks to improve health outcomes and achieve health equity for all people who need surgical and anaesthesia care, with a special emphasis on underserved populations and populations in crisis. Among these surgically treatable diseases, trauma causes over four million deaths annually, predominantly in LMICs and is an important aspect of Global surgery. Cancer, similarly, is the second most lethal noncommunicable disease after cardiovascular disease and accounted for about 9.9 million deaths, globally in 2020. Around 9% of all cancer death

Background Australia is a world leader in health and medical research, however an ongoing research barrier is the slow recruitment of research participants across the country. Increasing community involvement in medical research is a key goal for the government’s “National One Stop Shop” for clinical trials. Research registers are a proven way of connecting patients and researchers, but these registers typically address specific diseases, focus on people attending metropolitan centres of excellence, and can be difficult for patients to navigate. Disease-agnostic research registers offer participants of all types a single point of access to research. Aims Join Us is a not-for-profit, disease-agnostic health research register dedicated to connecting everyday Australians with meaningful research opportunities. Join Us aims to achieve better health and wellbeing for the Australian community by removing a major barrier to the recruitment of participant