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Distribution of NPI+ biological classes within the Nottingham and Edinburgh series
| NPI+ Class | Nottingham (n = 1073)n (%) | Edinburgh (n = 885)n (%) | p‐value |
|---|---|---|---|
| Luminal A | 288 (26.8) | 225 (29.3) | |
| Luminal N | 205 (19.1) | 152 (19.8) | |
| Luminal B | 186 (17.3) | 140 (18.3) | |
| Basal p53 altered | 113 (10.5) | 93 (12.1) | p = 0.629 |
| Basal p53 normal | 96 (8.9) | 70 (9.1) | |
| HER2+/ER+ | 62 (5.8) | 32 (3.6) | |
| HER2+/ER− | 85 (7.9) | 55 (6.2) | |
| Unclassified | 38 (3.5) | 51 (5.8) |
