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Background Demand for bariatric surgery in the public hospital setting in Australia is high with prolonged wait-list times. Policy-makers need to consider the consequences of expanding public bariatric surgery including on emergency department (ED) presentations. Aims To describe and evaluate public ED presentation rates and reasons for presenting in a cohort of patients wait-listed for public surgery. Methods All Tasmanians placed on the public wait-list for primary bariatric surgery in 2008–2013 were identified using administrative datasets along with their ED presentations in 2000–2014. The presentations were assigned to one of three periods: before wait-list placement, whilst on the wait-list, and after wait-list removal for publicly-funded surgery or drop-out. A negative binomial mixed-effects regression model was used to derive ED presentation incidence rate ratios (IRR) to compare observation periods and patient groups. Results 652 wait-listed patients had 5149 public ED presentations. 178 patients had publicly-funded bariatric surgery — all as laparoscopically adjustable gastric banding (LAGB). Overall, ED presentation rates did not change significantly post-surgery compared with the waiting period (IRR 1.19, 95%CI 0.90–1.56). Presentation rates significantly increased for digestive system (IRR 2.02, 95%CI 1.19–3.45) and psychiatric diseases (IRR 4.85, 95%CI 1.06–22.26) after surgery. The likelihood of being admitted from the ED significantly increased after surgery (31.7%–38.9%, p Conclusion ED presentations were common for patients wait-listed for public bariatric surgery and rates did not decrease over an average of three years post-LAGB. The likelihood of being admitted to the hospital from the ED increased after surgery.

Concerns have grown in recent decades that economic growth in many rich countries may, in fact, be uneconomic. Uneconomic growth occurs when expansion in economic activity causes environmental and social costs that are greater than the benefits of that additional activity. Health care has enjoyed a close historical relationship with economic growth, with health care spending consistently growing faster than GDP over the long term. This paper explores the possible relationship between health care and uneconomic growth. It summarises the rapidly growing evidence on the harms caused by poor quality health care and by the overuse of health care, and on the environmental harms caused by health care systems. Further, it develops a conceptual framework for considering the overconsumption of health care and the joint harms to human health and the natural environment that ensue. This framework illustrates how health-damaging overconsumption in the wider economy combines with unnecessary or low-quality health care to create a cycle of "failure demand" and defensive expenditure on health care services. Health care therefore provides important sectoral insights on the phenomenon of uneconomic growth. There are rich opportunities for interdisciplinary research to quantify the joint harms of overconsumption in health and health care, and to estimate the optimal scale of the health sector from novel perspectives that prioritise human and planetary health and well-being over GDP and profit.