In a multivariate analysis using Cox proportional-hazards regression, only tumor size (adjusted HR = 1.8, 95% CI = 1.3,2.5), PR expression (adjusted HR = 0.6, 95% CI = 0.5, 0.8), and necrosis (adjusted HR = 2.7, 95% CI = 1, 7.1) were found to predict recurrence independently. Here, PGR is linked to neoplasm.