How complicated skin and soft tissue infections are treated in Italy: Economic evaluation of inpatient intravenous antibiotic treatment in seven hospitals

AbstractObjectives: Complicated skin and soft tissue infections (cSSTIs) are a common cause of morbidity at hospital level. This study aimed to evaluate the costs and outcomes of inpatient intravenous antibiotic therapy for the treatment of cSSTI in seven Italian hospitals.Methods: A total of 307 patients were enrolled in a retrospective, multicentre, incidence-based, observational study. The target population consisted of hospitalised patients eligible to receive intravenous antibiotic therapy for cSSTI. Direct hospital costs were measured through a microcosting approach.Results: Failure of initial antibiotic therapy occurred in 23% of patients. Average antibiotic treatment lasted 12.2 days; the average full cost of admission totalled €5,530. If the initial antibiotic regimen fails to eradicate the infectious organism, the length of stay extends for 7 days and costs increase by €2,850 per patient. Nevertheless, when taking into account the lower intensity of care during the last days of treatment, saving...