Data from: Cost-minimization model of a multidisciplinary antibiotic stewardship team based on a successful implementation on a urology ward of an academic hospital

Background: In order to stimulate appropriate antimicrobial use and
thereby lower the chances of resistance development, an Antibiotic
Stewardship Team (A-Team) has been implemented at the University Medical
Center Groningen, the Netherlands. Focus of the A-Team was a pro-active
day 2 case-audit, which was financially evaluated here to calculate the
return on investment from a hospital perspective. Methods: Effects were
evaluated by comparing audited patients with a historic cohort with the
same diagnosis-related groups. Based upon this evaluation a
cost-minimization model was created that can be used to predict the
financial effects of a day 2 case-audit. Sensitivity analyses were
performed to deal with uncertainties. Finally, the model was used to
financially evaluate the A-Team. Results: One whole year including 114
patients was evaluated. Implementation costs were calculated to be
€17,732, which represent total costs spent to implement this A-Team. For
this specific patient group admitted to a urology ward and consulted on
day 2 by the A-Team, the model estimated total savings of €60,306 after
one year for this single department, leading to a return on investment of
5.9. Conclusions: The implemented multi-disciplinary A-Team performing a
day 2 case-audit in the hospital had a positive return on investment
caused by a reduced length of stay due to a more appropriate antibiotic
therapy. Based on the extensive data analysis, a model of this
intervention could be constructed. This model could be used by other
institutions, using their own data to estimate the effects of a day 2
case-audit in their hospital.