Statistical Analyses The numbers of person-years at risk of developing and dying for uterine cancer will be calculated. Incidence rates will be calculated by dividing the number of uterine cancer cases by the person-years at risk of developing uterine cancer. Mortality rates will be calculated by dividing the number of uterine cancer deaths by the person-years at risk of dying from uterine cancer. The association between mortality and age, histology, time periods will be estimated through Kaplan-Meier survival analysis and Cox's proportional hazards model. It is defined as significant difference statistically when p value is less than 0.05.