Economic and human burden attributable to antimicrobial resistance in Spain: a holistic macro-estimation of costs

Sabela Siaba () and Bruno Casal
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Sabela Siaba: Universidade da Coruña
Bruno Casal: Universidade da Coruña

The European Journal of Health Economics, 2025, vol. 26, issue 6, No 2, 893-926

Abstract: Abstract Antimicrobial resistance (AMR) represents a major threat to medical practice, complicating infection management, and increasing mortality and healthcare costs. Macro estimations of this health issue remain underexplored because data are currently limited to hospital systems. This study aims to estimate the economic and human burden of AMR in Spain at a macro level. An economic model was constructed based on prevalence rates, premature deaths and published literature to assess costs. Methodology was based on several techniques depending on the type of cost to be estimated: hospital inpatient care costs (based on extra hospital days); outpatient care costs (employing reimbursement rates from regional health services); productivity losses due to premature deaths (using the Human Capital Approach) and morbidity (based on days absent from work). Using data from EARS-NET, ESAC-NET and GBD, a total of 30 bacteria-drug resistance combinations were analysed. The results showed that 77,870 infections, 6,199 premature deaths, and 426,495 extra hospital days were attributable to AMR in Spain, mostly due to Gram-negative bacteria. AMR was also responsible for 3,112 years of working life lost. The costs reached EUR 338.6 million (0.03% of GDP), costing each Spaniard EUR 7.15 per year. Direct costs accounted for 72% of total costs, while indirect costs represented 28%. To date, this is the first study that evaluates the cost of AMR across such a wide range of bacteria and infection sites. These estimates are useful for approximating the problem and for planning containment and action strategies.

Keywords: Antibiotic resistance; Resistant infections; Cost of illness; Direct costs; Indirect costs; Spain (search for similar items in EconPapers)
JEL-codes: H0 I0 I1 (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10198-024-01746-3

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