1. A computer-readable, nonvolatile medium having computer-executable instructions stored thereon for execution by a processor to perform a method comprising the steps of: receiving from a database hospitalization data associated with at least one patient; identifying from the hospitalization data a day upon which a patient was admitted to the hospital and defining the day of admission as day 0; identifying from the hospitalization data a day upon which antimicrobials were first dispensed to the patient and defining the day of first dispense as day Q; identifying from the hospitalization data a number of days consecutively subsequent to day Q upon which the antimicrobials were dispensed to the patient and defining the number of consecutively subsequent days as C; identifying whether the C consecutively subsequent days comprise at least one of a day of discharge from the hospital and a day of death of the patient; and assigning an Antibiotic Utilization Criteria (AUC) marker of one to the patient if day Q is at least R days after day 0, and either C is greater than or equal to S or the C consecutively subsequent days comprise at least one of the day of discharge and the day of death.