| First cohort | Second cohort | ||||
---|---|---|---|---|---|---|
Categories | BCa | Benignb | Familyc | Controld | BCa | Controld |
Total number | 39 | 30 | 21 | 44 | 75 | 50 |
Recruiting time, years | 2004–2014 | 2004–2014 | 2004–2014 | 2004–2014 | 2004–2014 | 2004–2014 |
Median age (range), years | 51 (30–73) | 51 (40–63) | 47 (33–71) | 50 (36–70) | 52 (32–75) | 52 (37–71) |
Race | ||||||
 Caucasian | 26 | 28 | 20 | 36 | 75 | 50 |
 African-American | 11 | 1 | 1 | 7 | 0 | 0 |
 Other | 2 | 1 | 0 | 1 | 0 | 0 |
ER status | ||||||
 Positive | 26 |  |  |  | 46 |  |
 Negative | 4 |  |  |  | 29 | |
 Unknown | 9 |  |  |  | 0 | |
PR status | ||||||
 Positive | 24 |  |  |  | 41 |  |
 Negative | 5 |  |  |  | 34 | |
 Unknown | 10 |  |  |  | 0 | |
HER2 status | ||||||
 Positive | 6 |  |  |  | 28 |  |
 Negative | 25 |  |  |  | 47 | |
 Unknown | 8 |  |  |  | 0 | |
 Histological subtype | ||||||
 Ductal | 30 |  |  |  | 58 |  |
 Lobular | 2 |  |  |  | 9 | |
 Both | 2 |  |  |  | 0 | |
 Unclassified | 5 |  |  |  | 8 | |
Tumor grade | ||||||
 Well | 2 |  |  |  | 4 |  |
 Moderate | 13 |  |  |  | 38 | |
 Poor | 17 |  |  |  | 33 | |
 Unknown | 7 |  |  |  | 0 | |
Tumor stage | ||||||
 Localized |  |  |  |  |  |  |
 DCIS (pTis) | 6 |  |  |  | 0 | |
 Early (pT1-2N0M0) | 15 |  |  |  | 42 | |
 Advanced (pT3-4N0M0) | 4 |  |  |  | 8 | |
Metastatic | ||||||
 Regional (pT1-4 N1-3 M0) | 11 |  |  |  | 15 |  |
 Distant (pT1-4 M1) | 3 |  |  |  | 10 |