MKI67 and breast cancer: Univariate Cox proportional hazards regression analysis of DFS demonstrated that larger tumor size (HR = 2.22; 95% CI: 1.304–3.781; p = 0.003), TNM stage (HR = 3.435; 95% CI: 2.239–5.27; p < 0.001), lymph node (HR = 3.224; 95% CI: 1.967–5.284; p < 0.001), Ki67 status (HR = 1.775; 95% CI: 1.098-2.87; p = 0.019), lymphovascular invasion (LVI) status (HR = 3.236; 95% CI: 2.039–5.135; p < 0.001), and high lncRNA00544 expression (HR = 2.284; 95% CI: 1.463–3.565; p < 0.001) were distinctively linked with the prognosis of breast cancer (Table 2).