Factors influencing survival after discharge from an Australian palliative care unit to residential aged care facilities: a retrospective audit

BACKGROUND: Increasing demand for palliative care unit (PCU) beds has led to shorter inpatient stays and a requirement to transfer some patients from a PCU to a residential aged care facility (RACF). Concerns have been raised regarding this move with suggestion that patients often die shortly after transfer. Published data investigating this patient group are limited. The aim of the current study was to audit discharges from a PCU to RACFs specifically looking at predictive factors for survival following discharge. METHODS: A retrospective audit was undertaken of all discharges from the Barwon Health PCU to RACFs between July 2007 and July 2010. Data on patient demographics, clinical and functional status, admission and discharge details, and survival times were examined. Factors influencing survival were evaluated by Cox proportional-hazards regression analysis. RESULTS: Sixty-two discharges from a PCU to an RACF were included in the analysis. The mean age at discharge was 76 and the majority of patients had malignant disease. Mean and median survival times post-transfer were 106 and 42.5 days, respectively, and 16% of subjects survived more than 100 days. From univariate analyses age, PCU length of stay, admission Resource Utilization Groups-Activities of Daily Living (RUG-ADL) score, dependent mobility, having lung cancer or cancer of unknown primary, and living alone or in an RACF pre PCU admission affected survival. Multivariate analyses showed age, PCU length of stay, RUG-ADL score, and living situation prior to PCU admission together were associated with postdischarge survival times. CONCLUSIONS: This study is one of the largest investigating this cohort and suggests a number of factors that may predict survival for patients after discharge from a PCU to an RACF.