INDEPENDENT FACTORS FOR POOR PROGNOSIS IN YOUNG PATIENTS WITH STAGE I-III BREAST CANCER

Breast cancer is the most common malignancy in the population of women under 40 years of age. Young age is an independent factor for poor prognosis. In this research, we tried to establish other factors for poor prognosis in stage I-III breast cancer. The following parameters were observed: tumor size, lymph node status, histologic grade, hormonal receptor status, Ki-67 prognostic index, Her2 neu status, histologic type of the tumor, local recurrence and metastases. Logistic regression was used to evaluate the effect of specific factors on the probability of lethal outcome and development of distant metastases. Our patients showed a predominance of T1 tumor (49.4%), had positive lymph nodes (62%) and most of them were pN1 (61.2%). Up to one-third of patients had triple negative status. Ki-67 proliferation index was high (25%). Multicentric tumor was detected in 23% of patients. There was no difference in overall survival between the two types of surgical procedures. Patients with pN0 status had better overall survival. Breast cancer in the population of young women has a more aggressive nature. Study results indicated positive lymph node status as an independent factor for poor prognosis of stage I-III breast cancer.