KLF11 and breast cancer: KLF11 was negatively associated with DFS both in BC patients with the appearance of unifocal tumors (HR = 2.487, 95% CI = 1.090–5.672, n = 157, p = 0.034) and multifocal/multicentric tumors (HR = 2.505, 95% CI = 1.201–5.221, n = 135, p = 0.014).