Table 3 Features of 'basal' versus 'non-basal' tumours
Parameter | Basal | Non-basal | Adjusted odds ratio | p value |
|---|---|---|---|---|
Oestrogen receptor | Â | Â | Â | Â |
   Positive | 8 (9%) | 183 (52%) |  | <0.0001 |
   Negative | 72 (81%) | 150 (42%) | 10.9 (5.08–23.2) |  |
Progesterone receptor | Â | Â | Â | Â |
   Positive | 4 (5%) | 122 (33%) |  | <0.0001 |
   Negative | 75 (85%) | 206 (58%) | 11.9 (4.2–33.6) |  |
Axillary nodes | Â | Â | Â | Â |
   Positive | 37 (42%) | 214 (60%) |  | 0.0023 |
   Negative | 49 (55%) | 135 (38%) | 0.44 (0.27–0.72) |  |
Tumour size | Â | Â | Â | Â |
   p1 | 5 (6%) | 22 (6%) | 1.0 | 0.92 |
   p2 | 66 (75%) | 247 (70%) | 1.41 (0.50–3.97) |  |
   p3 | 17 (19%) | 76 (21%) | 1.19 (0.38–3.7) |  |
Menopausal status | Â | Â | Â | Â |
   Premenopausal | 42 (47%) | 133 (37%) | 1.0 |  |
   Perimenopausal | 15 (17%) | 49 (14%) | 1.91 (0.71–5.19) |  |
   Postmenopausal | 33 (38%) | 164 (46%) | 1.31 (3.80) |  |
Mean age in years | 49.9 (SE 1.30) | 53.9 (SE 0.65) | Â | 0.0065 |