Risk factors of distant metastasis after surgery among different breast cancer subtypes: a hospital-based study in Indonesia.

Background: More than one third of breast cancer patients including those that are diagnosed in early stages will develop distant metastasis. Patterns of distant metastasis and the associated risks according to the molecular subtypes are not completely revealed particularly in populations of patients with delayed diagnosis and advanced stages.

Methods: Breast cancer patients (n = 1304) admitted to our institute (2014-2017) were evaluated to identify the metastatic patterns and the associated risks.