From: Frequency of breast cancer subtypes among African American women in the AMBER consortium
 | Age ≥50 years, n (%) | Age <50 years,n (%) | OR (95% CI) | Postmeno, n (%) | Premeno, n (%) | OR (95% CI) |
---|---|---|---|---|---|---|
Luminal A | 305 (39) | 207 (34) | 1 | 300 (39) | 204 (35) | 1 |
Luminal B | 195 (25) | 138 (23) | 1.04 (0.79–1.38) | 194 (25) | 135 (23) | 1.02 (0.77–1.36) |
ER-/HER2+ | 49 (6) | 62 (10) | 1.86 (1.23–2.82) | 51 (7) | 57 (10) | 1.64 (1.08–2.30) |
Basal-like | 224 (29) | 201 (33) | 1.32 (1.02–1.71) | 233 (30) | 182 (31) | 1.15 (0.88–1.49) |
P value c | 0.008 | Â | 0.107 | Â | ||
Unclassified | 93 | 78 | Â | 93 | 72 | Â |