Table 2.
Characteristics of Experimental Test (TMA) Specimens
| No. of patients | Values | % | Comments | |
|---|---|---|---|---|
| Continuous variables | ||||
| Age at diagnosis (years) | ||||
| Median | 63 | |||
| Range | 26–101 | |||
| No. of patients | 1884 | |||
| Follow-up time (months) | ||||
| Median | 62 | |||
| Range | 1–176 | |||
| No. of patients | 2221 | |||
| Tumor diameter (mm) | ||||
| Median | 24 | |||
| Range | 2–140 | |||
| No. of patients | 2173 | |||
| Discrete variables | ||||
| Lymph node status | ||||
| 0 | 503 | 46.1 | ||
| 1 | 511 | 46.9 | ||
| 2 | 76 | 7.0 | ||
| Unknown | 204 | |||
| Tumor grade | ||||
| I | 276 | 23.2 | ||
| II | 449 | 37.7 | ||
| III | 466 | 39.1 | ||
| Unknown | 103 | |||
| TIMP-4 status | ||||
| 0 | 635 | 49.1 | ||
| I | 437 | 33.8 | ||
| II | 197 | 15.2 | ||
| III | 25 | 1.9 | ||
| ER status | ||||
| Positive | 972 | 77.3 | ||
| Negative | 285 | 22.7 | ||
| Unknown | 37 | |||
| Histological type | ||||
| IDC | 1294 | Analyzable | ||
| Other | 489 | |||
| IDC tumor size | ||||
| ≤20 mm | 460 | |||
| ≥20 mm | 834 | |||
| Node status in IDC ≤20 mm (T1) | Used in study of all T1N0 | |||
| N0 | 314 | |||
| N1–N3 | 146 | |||
| ER status among T1N0 | ||||
| ER-positive | 158 | |||
| ER-negative | 156 | Used in study of ER-negative T1N0 |