Table 1.
General characteristics of patients with breast cancer in Costa Rica.
| NO. OF PATIENTS, (%) | P VALUE* | ||
|---|---|---|---|
| Age, years-old | |||
| <50 years | 74 (37.2) | ||
| 50–70 years | 103 (51.8) | .03 | |
| >70 years | 22 (11.1) | ||
| AJCC stage | |||
| 0 | 6 (3) | ||
| I | 35 (17.6) | ||
| IA | 31 (15.6) | ||
| IB | 4 (2) | ||
| II | 83 (41.7) | ||
| IIA | 50 (25.1) | ||
| IIB | 33 (16.6) | <.001 | |
| III | 67 (33.6) | ||
| IIIA | 38 (19.1) | ||
| IIIB | 15 (7.5) | ||
| IIIC | 14 (7) | ||
| IV | 7 (3.5) | ||
| Missing | 1 (0.05) | ||
| Immunohistochemical (IHC) subtype | |||
| HR+/HER2− | 124 (62.3) | ||
| <50 years | 41 (20.6) | ||
| >50 years | 83 (41.7) | ||
| HR+/HER2+ | 18 (9) | ||
| <50 years | 8 (4.02) | ||
| >50 years | 10 (5.02) | ||
| HR−/HER2+ | 19 (9.5) | .02 | .32* |
| <50 years | 10 (5.02) | ||
| >50 years | 9 (4.52) | ||
| HR−/HER2− | 34 (17.1) | ||
| <50 years | 14 (7.03) | ||
| >50 years | 20 (10.05) | ||
| Missing | 4 (2.01) | ||
| Histologic grade | |||
| Grade I | 27 (13.6) | ||
| Grade II | 74 (37.2) | .33 | |
| Grade III | 62 (31.1) | ||
| Missing | 36 (18.1) | ||
| Lymphovascular | |||
| Invasion present | 34 (17.08) | ||
| Absent | 66 (33.16) | .015 | |
| Missing | 99 (49.74) | ||
| Local recurrence | |||
| Present | 7 (3.58) | <.001 | |
| Absent | 192 (98.46) | ||
| Distal | |||
| Recurrence | 11 (5.53) | ||
| Present | 182 (91.46) | <.001 | |
| Absent | 6 (3.02) | ||
| Stage IV | |||
Notes:
*
Univariate analysis.
**
IHC subtype and age.