UNDERSTANDING THE KAPLAN-MEIER ESTIMATE FOR BREAST CANCER – A RETROSPECTIVE STUDY

Breast cancer is a cancerous tumor that develops from breast cells. Although it mostly affects women, men can occasionally develop breast cancer. For estimating the median of the distribution of breast cancer patients’ survival periods after being enrolled in the study, Kaplan-Meier estimator is more accurate method to be implemented. The factors included in the study: age, race, marital status, patient differentiation, estrogen status, progesterone status, disease stage, and the outcomes of the therapy of 4024 breast cancer patients. The median overall survival time for breast cancer patients was 60 months, with a mean age of 53.97 and a standard deviation of 8.963. According to this, 78% of breast cancer patients survived for more than 60 months after their diagnosis.

Keywords: Survival Analysis, Kaplan-Meier, Breast Cancer, Stages, Omnibus Tests, and Long-Run Test.