- Sub analysis of estrogen receptor (ER) positive tumors with respect to age, tumor size, tumor grade, lymphovascular invasion, lymph node metastasis, distant metastasis and Ki67 expression.
| Variables | ≤40 with ER+ve (n=69) | >40 with ER+ve (n=280) | P-value |
|---|---|---|---|
| Tumor size | 0.473 | ||
| ≤2 cm | 10 (14.5) | 57 (20.4) | |
| >2 cm - ≤5 cm | 47 (68.1) | 184 (65.7) | |
| > 5cm | 12 (17.4) | 39 (13.9) | |
| Histological grading | 0.0001 | ||
| Grade I | 4 (5.8) | 25 (8.9) | |
| Grade II | 32 (46.4) | 192 (68.6) | |
| Grade III | 33 (47.8) | 63 (22.5) | |
| Axillary lymph node metastasis | <0.0001 | ||
| No | 17 (24.6) | 187 (66.8) | |
| Yes | 52 (75.4) | 93 (33.2) | |
| Lymphovascular invasion | 0.003 | ||
| No | 11 (15.9) | 96 (34.3) | |
| Yes | 58 (84.1) | 184 (65.7) | |
| Distant metastases | 0.0008 | ||
| No | 13 (52.0) | 113 (57.3) | |
| Yes | 56 (48.0) | 167 (42.7) | |
| Ki67 expression | 0.455 | ||
| Negative | 34 (49.3) | 124 (44.3) | |
| Positive | 35 (50.7) | 156 (55.7) | |
Values are expressed as number and percentage (%)