Covariate-adjusted sub-hazard ratios (SHR) for occurrence of spinal cord compression, pathological fracture, bone surgery, or radiation therapy (SCRT) among women diagnosed with stage IV breast cancer
n: number of patients.PFS: progression-free survival.LC: local control.NPFS: nodal progression-free survival.DMFS: distant metastasis-free survival.SUVmaximum: maximum standardized uptake value.AJCC: