MKI67 and breast cancer: In the HR+/HER2− BC group, univariate Cox proportional hazards analysis revealed that lncRNA00544 expression (HR = 3.573; 95% CI: 1.762–7.242; p < 0.001), TNM stage (HR = 3.273; 95% CI: 1.705–6.281; p < 0.001), Ki67 (HR = 2.508; 95% CI: 1.3–4.84; p = 0.006), and LVI status (HR = 2.423; 95% CI: 1.226–4.788; p = 0.011) were prognostic indicators (Table 4).