Univariate analysis on the survival rate revealed that the number of positive nodes, tumor size, lymphatic permeation, tumor necrosis, histologic type, histologic grade, and age were significant prognostic factors.

• 单一变数存活分析结果显示腋下淋巴结转移，肿瘤大小，淋巴管侵袭，肿瘤坏死，肿瘤组织分类，组织学恶性度，及年龄少于30岁是有意义之预后因子。