Counting the cost of hospitalised injury using administrative data in Australia: three considerations from a retrospective cohort data linkage study by Jacelle Warren, Kirsten Vallmuur, Victoria McCreanor, Steven M McPhail, Shahera Banu, Michael Schuetz, Clifford Afoakwah

“…Objectives To examine the relative differences in injury hospitalisation cost estimates from hospital administrative data when using (1) hospital reimbursement based on National Efficient Price (NEP) versus local hospital costings methods, (2) inflation factors based on Consumer Price Index (CPI) versus health group index and (3) different healthcare funder’s perspectives.Design Retrospective population-based cohort study of linked Queensland Hospital Admitted Patient Data Collection dataset and National Hospital Cost Data Collection data.Setting All admitted injury-related care episodes occurring within a major trauma hospital in Queensland during 1 January 2012 to 31 December 2017.Outcome measure Total in-patient hospitalisation cost associated with an episode of care.Results Injury without catastrophic/severe complications or comorbidities was the most frequently occurring Australian Refined Diagnosis-Related Groups (AR-DRG) over the 6-year period, while rehabilitation with catastrophic complications or comorbidities was the most expensive ($37 938, 95% CI $36 067 to $39 809). …”
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