Healthcare utilisation after discharge in patients admitted with gout in Western Australia
Abstract Objectives Evidence suggests that gout is associated with high health care costs and that many inpatient admissions are preventable. Understanding the drivers of health care costs in patients with gout will allow more targeted intervention. The objective was to examine factors associated with high health service utilisation and costs in patients admitted to hospital with gout. Methods Hospital and emergency department data was obtained for patients who had been admitted to hospital with a diagnosis of gout for the first time between 2002 and 2009. The total number, cost and potentially preventable events for the follow-up period was calculated for up to five years post the initial gout hospitalisation. The association between patient characteristics with health service utilisation and health care costs was examined using generalised linear models. Results The cohort included 4,379 individuals, that had 22,222 ED attendances (median cost: $1,826 per patient, IQR: $433 - $4,414), and 58,920 hospital admissions (median cost: $25,009 per patient, IQR: $6,844 - $60,535). Gout was not a primary driver of ED attendances or hospitalisations. A history of smoking and comorbidities including cardiovascular disease, diabetes and mental health disorders were associated with an increase health service utilisation and costs. Conclusion The presence of comorbidities play an important role the risk of health service utilization in people with gout and represents an opportunity to both improve the health-related outcomes for these patients and reduce re-presentations and associated health care costs for the health care system.