MKI67 and neoplasm: It was observed that, as continuous variables, a large tumor size (OR = 0.733; 95% CI, 0.588~0.913; p = 0.006) and a higher PR (OR = 0.985; 95% CI, 0.976~0.955; p = 0.004) were negatively correlated with breast pCR, while a higher Ki67 (OR = 1.019; 95% CI, 1.006~1.032; p = 0.004) was positively correlated with breast pCR.