Table 1 Dataset characteristics – demographic and cancer subtype distribution in each risk category for the cases from the 3 different institutions considered in this study
Parameters | Â | Â | Â |
|---|---|---|---|
Oncotype DX Risk Category | Low (< 18) | Intermediate (> 18, ≤30) | High(> 30) |
No. of Patients (N = 125) | 66 (53%) | 44 (35%) | 15 (12%) |
Age | 20–77 | 25–70 | 45–70 |
Sex | |||
 Female | 66 (53%) | 43 (34%) | 15 (12%) |
 Male | 0 (0%) | 1 (1%) | 0 (0%) |
Patient Ethnicity | |||
 White | 33 (26%) | 23 (18%) | 5 (5%) |
 African American | 3 (2%) | 2 (2%) | 2 (2%) |
 Asian | 1 (1%) | 2 (2%) | 1 (1%) |
 Unknown | 22 (18%) | 17 (14%) | 7(6%) |
PR Status | |||
 Positive | 64 (51%) | 39 (31%) | 10 (8%) |
 Negative | 2 (2%) | 3 (2%) | 5 (4%) |
 Unknown | 0 (0%) | 2 (2%) | 0 (0%) |
HER2 Status | |||
 Positive | 0 (0%) | 1 (1%) | 0 (0%) |
 Negative | 66 (53%) | 42 (34%) | 15 (12%) |
 Unknown | 0 (0%) | 1 (1%) | 0 (0%) |
Histologic Tumor Grade | |||
 Low (4, 5) | 10 (8%) | 14 (11%) | 0 (0%) |
 Moderate (6, 7) | 48 (38%) | 24 (19%) | 4 (3%) |
 High (8, 9) | 8 (6%) | 6 (5%) | 11 (9%) |
Tumor Type | |||
 Ductal | 53 (42%) | 37 (30%) | 14 (11%) |
 Ductal With Lobular Features | 9 (7%) | 3 (2%) | 1 (1%) |
 Ductal with Mucinous Features | 1 (1%) | 2 (2%) | 0 (0%) |
 Mixed | 3 (2%) | 2 (2%) | 0 (0%) |