Table 3.
Comparison between basal-like and non-basal-like subtypes.
| Characteristic (N) | Basal-like N (%) | Non-basal-like N (%) | Chi-square | p value |
|---|---|---|---|---|
| Menstrual history (200) | ||||
| Premenopausal | 44 (43.6) | 37 (37.4) | 0.922 | 0.631 |
| Perimenopausal | 7 (6.9) | 9 (9.1) | ||
| Postmenopausal | 50 (49.5) | 53 (53.5) | ||
| Age at first childbirth (years) (99) | ||||
| 15–20 | 5 (11.1) | 9 (16.7) | 6.189 | 0.185 |
| 21–25 | 27 (60) | 24 (44.4) | ||
| 26–30 | 10 (22.2) | 12 (22.2) | ||
| 31–35 | 1 (2.2) | 0 (0) | ||
| Not yet | 2 (4.4) | 9 (16.7) | ||
| Parity (150) | ||||
| 1 | 12 (16.2) | 7 (9.2) | 8.285 | 0.141 |
| 2 | 25 (33.8) | 32 (42.1) | ||
| 3 | 21 (28.4) | 22 (28.9) | ||
| 4 or more | 14 (18.9) | 8 (10.5) | ||
| Not yet | 2 (2.7) | 7 (9.2) | ||
| Family history of cancer (149) | ||||
| Yes | 18 (24) | 16 (21.6) | 0.120 | 0.729 |
| No | 57 (76) | 58 (78.4) | ||
| Stage (200) | ||||
| I | 3 (3) | 8 (8.1) | 3.906 | 0.272 |
| II | 69 (68.3) | 67 (67.7) | ||
| III | 22 (21.8) | 21 (21.2) | ||
| IV | 7 (6.9) | 3 (3) | ||
| Grade (200) | ||||
| II | 11 (10.9) | 16 (16.2) | 0.306 | 0.189 |
| III | 90 (89.1) | 83 (83.8) | ||
| Lymph node status (189) | ||||
| Positive | 43 (46.7) | 43 (44.3) | 0.111 | 0.740 |
| Negative | 49 (53.3) | 54 (55.7) | ||
| Extracapsular extension (86) | ||||
| Present | 26 (60.5) | 32 (74.4) | 1.906 | 0.167 |
| Absent | 17 (39.5) | 11 (25.6) | ||
| Lymphovascular invasion (194) | ||||
| Present | 35 (34.7) | 46 (46.5) | 7.908 | 0.019 ∗ |
| Absent | 60 (59.4) | 53 (53.5) | ||
| Recurrence type (32) | ||||
| Local | 1 (6.3) | 1 (6.3) | 1.034 | 0.596 |
| Locoregional | 0 (0) | 1 (6.3) | ||
| Distant | 15 (93.8) | 14 (87.5) | ||
| Vital status (200) | ||||
| Alive | 78 (77.2) | 83 (83.8) | 1.392 | 0.238 |
| Death | 23 (22.8) | 16 (16.2) | ||
| Cause of death (39) | ||||
| Disease-related | 21 (91.3) | 12 (75) | 1.927 | |
| Non-disease-related | 2 (8.7) | 4 (25) | 0.165 |
∗p < 0.05.