ObjectivesTo estimate the annual health economic impact of healthcare-associated infections (HCAIs) to the National Health Service (NHS) in England.DesignA modelling study based on a combination of published data and clinical practice.SettingNHS hospitals in England.Primary and secondary outcome measuresAnnual number of HCAIs, additional NHS cost, number of occupied hospital bed days and number of days front-line healthcare professionals (HCPs) are absent from work.ResultsIn 2016/2017, there were an estimated 653 000 HCAIs among the 13.8 million adult inpatients in NHS general and teaching hospitals in England, of which 22 800 patients died as a result of their infection. Additionally, there were an estimated 13 900 HCAIs among 810 000 front-line HCPs in the year. These infections were estimated to account for a total of 5.6 million occupied hospital bed days and 62 500 days of absenteeism among front-line HCPs. In 2016/2017, HCAIs were estimated to have cost the NHS an estimated £2.1 billion, of which 99.8% was attributable to patient management and 0.2% was the additional cost of replacing absent front-line HCPs with bank or agency staff for a period of time. When the framework of the model was expanded to include all NHS hospitals in England (by adding specialist hospitals), there were an estimated 834 000 HCAIs in 2016/2017 costing the NHS £2.7 billion, and accounting for 28 500 patient deaths, 7.1 million occupied hospital bed days (equivalent to 21% of the annual number of all bed days across all NHS hospitals in England) and 79 700 days of absenteeism among front-line HCPs.ConclusionThis study should provide updated estimates with which to inform policy and budgetary decisions pertaining to preventing and managing these infections. Clinical and economic benefits could accrue from an increased awareness of the impact that HCAIs impose on patients, the NHS and society as a whole.
ObjectiveTo assess the potential clinical and economic impact of introducing an electronic audit and feedback system into current practice to improve hand hygiene compliance in a hypothetical general hospital in England, to reduce the incidence of healthcare-associated infections (HCAIs).MethodsDecision analysis estimated the impact of introducing an electronic audit and feedback system into current practice to improve hand hygiene compliance among front-line healthcare practitioners (HCPs).ResultsThe model assumed 4.7% of adult inpatients (ie, ≥18 years of age) and 1.72% of front-line HCPs acquire a HCAI in current practice. The model estimated that if use of the electronic audit and feedback system could lead to a reduction in the incidence of HCAIs of between 5% and 25%, then the annual number of HCAIs avoided could range between 184 and 921 infections per hospital and HCAI-related mortality could range between 6 and 31 deaths per annum per hospital. Additionally, up to 86 days of absence among front-line HCPs could be avoided and up to 7794 hospital bed days could be released for alternative use. Accordingly, the total annual hospital cost attributable to HCAIs could be reduced by between 3% and 23%, depending on the effectiveness of the electronic audit and feedback system. If introduction of the electronic audit and feedback system into current practice could lead to a reduction in the incidence of HCAIs by at least 15%, it would have a ≥0.75 probability of affording the National Health Service (NHS) a cost-effective intervention.ConclusionIf the introduction of the electronic audit and feedback system into current practice in a hypothetical general hospital in England can improve hand hygiene compliance among front-line HCPs leading to a reduction in the incidence of HCAIs by ≥15%, it would potentially afford the NHS a cost-effective intervention.
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