Table 1 Co-relation of clinico-pathologic parameters of luminal A and luminal B breast cancers
| Â | Â | Luminal B | Luminal A | Total | P value |
|---|---|---|---|---|---|
Age (years) ↑± |  | 51.12 ± 12.619 | 54.63 ± 12.740 |  | < 0.05 |
Age group (n = 1224) | |||||
|  | ≤ 30 | 42(5) | 14(3.7) | 56(4.6) | < 0.05 |
|  | 31–50 | 397(47) | 138(36.4) | 535(43.7) | |
|  | 51–70 | 355(42) | 194(51.2) | 549(44.9) | |
|  | > 70 | 51(6) | 33(8.7) | 84(6.9) | |
Tumor grade (n = 1224) | |||||
|  | Grade 1 | 94(11.1) | 112(29.6) | 206(16.8) | < 0.05 |
| Â | Grade 2 | 527(62.4) | 235(62) | 762(62.3) | |
| Â | Grade 3 | 224(26.5) | 32(8.4) | 256(20.9) | |
Size of tumor ↑± |  | 35.09 ± 14.20 | 35.21 ± 15.18 |  | 0.985 |
Tumor stage (n = 504) | |||||
| Â | T1 | 41(13.7) | 35(17.2) | 76(15.1) | 0.535 |
| Â | T2 | 216(72) | 139(68.1) | 355(70.4) | |
| Â | T3/T4 | 43(14.3) | 30(14.7) | 73(14.5) | |
Nodal status (n = 504) | |||||
|  | Positive | 162(54) | 89(43.6) | 251(49.8) | < 0.05 |
| Â | Negative | 138(46) | 115(56.4) | 253(50.2) | |
N stage (n = 504) | |||||
|  | N0 | 141(47) | 115(56.4) | 256(50.8) | < 0.05 |
| Â | N1 | 74(24.7) | 50(24.5) | 124(24.6) | |
| Â | N2 | 50(16.7) | 16(7.8) | 66(13.1) | |
| Â | N3 | 35(11.7) | 23(11.3) | 58(11.5) | |
Laterality (n = 1224) | |||||
| Â | Left | 419(49.6) | 191(50.4) | 610(49.8) | 0.793 |
| Â | Right | 426(50.4) | 188(49.6) | 614(50.2) | |