Model validation
breast cancer
REGRESSION, BREAST CANCER
We screened patients from the Surveillance, Epidemiology, and End Results (SEER) research data, 8 Registries, Nov 2022 Sub (1975–2022). The breast cancer patients—who were stated as no response to NAC and had comprehensive data—were selected. These data were used to validate the previously RF model and logistic regression model which constructed based on the 5-year cohort.