Baseline characteristics of patients according to intrinsic subtypes.

AJCC, American Joint Committee on Cancer; SUVmax, maximum standardized uptake value; HER2, human epidermal growth factor receptor-2.
a Chi-square test, except for bMann–Whitney U test.
c Data with missing values.
d HER-2 positivity was defined by 3+ score on immunohistochemistry or amplification on fluorescence in situ hybridization.
Baseline characteristics of patients according to intrinsic subtypes.

AJCC（美国癌症联合委员会，American Joint Committee on Cancer）；SUVmax（最大标准化摄取值，maximum standardized uptake value）；HER2（人表皮生长因子受体2，human epidermal growth factor receptor-2）。
a 卡方检验，除b项采用曼-惠特尼U检验（Mann–Whitney U test）外。
c 存在缺失值的数据。
d HER2阳性定义为免疫组化检测评分为3+，或经荧光原位杂交（fluorescence in situ hybridization）检测存在基因扩增。
按患者固有亚型划分的基线特征。