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Title: Assessing the excess health service utilisation and direct medical costs of injuries
Author: Macey, Steven Michael
Awarding Body: Swansea University
Current Institution: Swansea University
Date of Award: 2010
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This study was undertaken with the aim to develop improved measures of health service utilisation (HSU) and direct medical costs following an index injury, utilising large scale datasets linked via anonymous patient identifiers. A cohort of anonymous injury patients resident in Swansea and attending an emergency department (ED) or admitted to hospital between 01/04/2005 and 31/03/2007 were identified and tracked as they progressed through various treatment stages following their index injury, incorporating ED attendances, inpatient stay and outpatient contacts. To determine the extent of the subsequent HSU and direct medical costs associated with the index injury a unique model was developed whereby the numbers, lengths and treatment costs of health service contacts observed amongst the cohort of injured individuals during the follow-up period were compared with the equivalent figures expected in the absence of an injury. On average each index injury was found to lead to an excess of 0.12 (95% Cl 0.11, 0.13) ED attendances, 0.07 (95% Cl 0.06, 0.08) inpatient admissions, 1.00 (95% Cl 0.78, 1.23) inpatient bed days and 0.55 (95% Cl 0.52, 0.58) outpatient contacts being estimated over the follow-up period. Moreover, every index injury resulted in mean excess ED, inpatient and outpatient treatment costs of £12.05 (95% Cl £11.05, £13.05), £492.43 (95% Cl £415.66, £569.21) and £73.30 (95% Cl £68.44, £78.17), respectively, equating to a combined figure of £577.79 (95% Cl £500.32, £655.26). Across the entire injured cohort this amounts to an overall excess direct medical cost total of £17.6 million being incurred, with the equivalent figure for the whole of Wales potentially being as high as £306.4 million. Together with signifying the magnitude of the HSU and direct medical costs resulting from injury, this study has introduced and implemented improved methods for estimating these outcome measures based on the use of anonymous patient record linkage.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Health service economics ; Health service utilisation ; Accidents ; Wounds and injuries