An outcome measure tracks the end result of healthcare processes. The CAUTI rate per 1,000 catheter days directly measures the frequency of infections, making it an ideal outcome metric.

From the APIC Text:

“An incidence rate (i.e., the number of new cases during a time period, such as the rate of patients with urinary catheters who get a CAUTI) is a frequently used outcome performance measure.”

Other choices like care compliance or training are process measures, not outcomes.