Objective: This study compared the prevalence of homelessness in consecutive patients presenting to a metropolitan hospital ED measured via a prospective housing screen with the prevalence of homelessness determined via retrospective audit of hospital data. Factors that altered the odds of patients being homeless and service outcomes that differed were examined for screened patients. Methods: All patients presenting to the ED during a 7 day period in 2017 were invited to complete a housing screen. A retrospective audit of all ED presentations during the same period also occurred. Demographic (e.g. age, gender), clinical (e.g. reason for presentation, ED presentation history) and arrival mode (e.g. time, how arrived) predictors of homeless status were examined alongside care outcomes (e.g. ED length of stay, admission and 28 day re-presentation). Results: Of 1208 presenting patients, 504 were prospectively screened and 7.9% were homeless. This compared with 0.8% of ED presentations coded as homeless in the Victorian Emergency Minimum Dataset and 2.3% of the 704 non-screened patients identified as homeless using Victorian Emergency Minimum Dataset Usual Accommodation alongside primary diagnosis and registration address. Within the screened sample, homeless patients were more likely to be male, arrive by emergency ambulance/with police, have a psychosocial diagnosis, and be frequent presenters. Representation within 28 days occurred for 43% of homeless and 15% of not-homeless patients. Conclusions: Hospital ED administrative data substantially under-recognises the prevalence of homelessness in presenting patients. Standardised use of brief housing screens could improve identification of and provision of support to this often highly vulnerable population.

This paper addresses an ontological question about the nature of health and challenges some underpinning assumptions in western healthcare. In its analysis, health in its various statuses, is framed as a naturally occurring complex adaptive system made up of dynamically interacting subsystems that include the physiological, psychological, and social realms. Furthermore, openness in complex systems such as health, is necessary for the exchange of energy, information, and resources. Yet, within healthcare much effort is invested in constraining systems' behaviours, whether they be systems of knowledge, health, healthcare, and more. This paper draws on the complexity sciences and Levinasian philosophy to explicate the essential role of system openness in individual, population, and systemic viability. It highlights holism to be "not whole-ism", and system openness to be, not just a reality, but a critical feature of viability. Hence requisite openness is advocated as essential to efficacious and ethical healthcare practice and strategy, and vital for health.

Background: Nurse practitioners have been well-established in many parts of the world and valued as a senior role in healthcare systems. This paper offers an appraisal of a palliative care nurse practitioner model of care project and augments an understanding of being a nurse practitioner (NP) in the Australian context. Aims: To enhance outcomes for people regardless of care setting; and to enhance professional relationships between hospital and community services. A secondary objective was to facilitate a seamless transition from one service to another. Methods: The setting was a home-based palliative care service and a tertiary acute hospital, between which the role was employed. This paper describes the role from the NP's perspective, using the NP's log of work and personal reflections. Results: Despite describing many challenges, an NP shared model of care has benefits not just for smoothing the client's journey through settings of care, but also for increased opportunities for clinicians to work together. Conclusions: There are opportunities for further research, including models of role implementation, the skills required by the clinician, and acceptance and respect of the NP role.

Increasingly, complexity science concepts are informing health care design and practice. The present paper describes the implementation of early complexity science principles in a Complex Care Program with the aim of strengthening the provision of integrated care. Grounded in cybernetic network theory, Stafford Beer's Viable Systems Model [1] provided the guiding principles for the program's redesign. The Viable Systems Model with its broadly applicable principles [1], is now the conceptual model of information management in the program. Beer's framework has enabled a relatively small number of clinicians to coordinate care for a large cohort of patients with significant clinical complexity, and a multitude of providers, in the community setting.