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Table 1 Sample characteristics

From: High incidence of triple negative breast cancers following pregnancy and an associated gene expression signature

  Nulliparous Recent pregnancy Distant pregnancy
Sample size 19 17 17
Tumor size (cm) (mean ± SD) 2.7 ± 1.7 2.0 ± 1.2 4.6 ± 4.5
Age at diagnosis (mean ± SD) 36 ± 5 38 ± 3 36 ± 7
Pregnancies (mean ± SD) 0 2.0 ± 1.0 1.9 ± 0.7
Tumor grade    
 I 2 (11 %) 0 (0 %) 2 (12 %)
 II 12 (63 %) 2 (12 %) 4 (24 %)
 III 4 (21 %) 13 (76 %) 10 (59 %)
 NA 1 (5 %) 2 (12 %) 1 (6 %)
ERα+ 16 (84 %) 9 (53 %) 7 (41 %)
PR+ 10 (53 %) 9 (53 %) 6 (35 %)
Her2/neu+ 8 (42 %) 6 (35 %) 5 (29 %)
Triple negative status    
 TNBCs 1 (5 %) 7 (41 %) 7 (41 %)
 Non-TNBCs 18 (95 %) 10 (59 %) 10 (59 %)
  1. Unless otherwise stated, numbers indicate patients in each category with percent contribution in parentheses