title: What is the incidence of patients with palliative care needs presenting to the Emergency Department? a critical review.
abstract: BACKGROUND
  Given the context of ageing populations globally, there are a growing number of patients with chronic conditions, some of whom are in the final stages of their disease trajectory, presenting to Emergency Departments.
  
  
  OBJECTIVE
  The aim was to estimate the incidence of patients with palliative care needs presenting to the department.
  
  
  METHODS
  Three databases (MEDLINE, CINAHL and Embase) were systematically searched up to August 2012. The reference lists of included articles were searched as well as Google and Google Scholar. Only studies in English were included. Two reviewers independently reviewed studies at the abstract and full-body stages. A critical review using systematic methods was undertaken as statistical analysis could not be done because of a lack of information.
  
  
  RESULTS
  Only 10 of 1427 identified records met the inclusion criteria. Different definitions of palliative care were evident. One article provided an incidence density for patients with non-small cell lung cancer, and we calculated the mean presentations to be 52.5 per 100 person-months. Two articles focussed on patients known to palliative care services; we estimated that 2.5 in 1000 Emergency Department visits were made by these patients. The review demonstrated that the studies were so different it was not possible to compare the data.
  
  
  CONCLUSIONS
  There is an absence of evidence regarding the incidence of patients with palliative care needs presenting to the Emergency Department. Further research needs to be undertaken in this area to ensure both clinicians and policymakers have sufficient information for service provision.
authors.affiliation: School of Nursing, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand joanne.wong@auckland.ac.nz.
authors.forename: Joanne
authors.initials: J
authors.lastname: Wong
authors.affiliation: School of Nursing, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
authors.forename: Merryn
authors.initials: M
authors.lastname: Gott
authors.affiliation: School of Nursing, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
authors.forename: Rosemary
authors.initials: R
authors.lastname: Frey
authors.affiliation: School of Nursing, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
authors.forename: Andrew
authors.initials: A
authors.lastname: Jull
mesh_terms: D002908:Chronic Disease / Q000145:classification; D015331:Cohort Studies; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D010166:Palliative Care / Q000706:statistics & numerical data* / Q000639:trends*
keywords: Palliative care; emergency service; hospital; incidence