Table 2.
Description of primary breast cancer characteristics in the Vermont Breast Cancer Surveillance System (VBCSS) (1996-2012) AGES 40-49
| Variable | Screened (%) (n=979) |
Non-screened (%) (n=470) |
P-value |
|---|---|---|---|
| Diagnosis Type | <0.0001 | ||
| In situ | 288 (29.4) | 33 (7.0) | |
| Invasive | 691 (70.6) | 437 (93.0) | |
| Stage at Diagnosis | <0.0001 | ||
| In situ | 288 (29.4) | 33 (7.0) | |
| Localized | 447 (45.7) | 206 (43.8) | |
| Regional | 221 (22.6) | 201 (42.8) | |
| Distant | 12 (1.2) | 24 (5.1) | |
| Unknown | 11 (1.1) | 6 (1.3) | |
| Tumor Size | <0.0001 | ||
| In situ | 288 (29.4) | 33 (7.0) | |
| ≤ 2.0 cm | 491 (50.2) | 208 (44.3) | |
| 2.1-5.0 cm | 147 (15.0) | 162 (34.5) | |
| ≥ 5.0 cm | 26 (2.7) | 47 (10.0) | |
| Unknown | 27 (2.8) | 20 (4.4) | |
| Tumor Grade | 0.04 | ||
| Low | 181 (18.5) | 70 (14.9) | |
| Intermediate | 386 (39.4) | 187 (39.8) | |
| High | 271 (27.7) | 162 (34.5) | |
| Unknown | 141 (14.4) | 51 (10.9) |