CP and clostridium difficile infection: The rate of HA-CDI with modified CP in 2021 was 0.362 (182 cases/503,327 patient-days), which was not significantly different from the rate with baseline CP in 2019, 0.393 (186/473,884) (P = .43), or from the rate with baseline CP in 2023, 0.297(159/535,901) (P = .07).