Hospital use in Aboriginal and non-Aboriginal patients with chronic disease.

OBJECTIVE: The objective of this study was to compare rates of hospital utilisation in Aboriginal and non-Aboriginal peoples before and after hospital admission for chronic obstructive pulmonary disease, heart failure and/or type 2 diabetes mellitus. METHODS: This was a longitudinal cohort study from 2002 to 2014, which was conducted in all hospitals in Western Australia. The participants of this study were Aboriginal and non-Aboriginal patients with a principal diagnosis of heart failure, type 2 diabetes or chronic obstructive pulmonary disease, on admission to hospital, where such an event had not occurred in the previous 3 years. Inpatient days and ED presentations were the main outcome measures. RESULTS: Among the patients with chronic disease, Aboriginal people have similar inpatient days for all causes compared to non-Aboriginal people. However, they have much higher ED presentations in comparison. Age of onset of cardinal events occurs 15-20 years earlier in Aboriginal patients with chronic disease. Although age has little influence on ED presentations in non-Aboriginal chronic disease patients, younger Aboriginal people with chronic disease present far more often to ED than older Aboriginal people. CONCLUSIONS: Aboriginal people use health services in a different manner when compared to non-Aboriginal people. In a subset of patients with chronic disease, high use may be reduced with better access to primary healthcare. Policy-makers and healthcare providers should examine healthcare use from primary to tertiary care among the Aboriginal population, with a particular focus on ED presentations; investigate the underlying causes driving specific patterns of health service utilisation among Aboriginal people; and develop interventions to reduce potential deleterious impacts, and enhance the potential benefits, of specific patterns of healthcare use.