Table 1.
Descriptive variables (N = 377).
| Variable | Level | Overall (N = 377) |
|---|---|---|
| Mammograph, N (%) | Fuji | 35 (9.3) |
| GE | 325 (86.2) | |
| Hologic | 17 (4.5) | |
| Type of lesion, N (%) | Microcalcifications | 101 (26.8) |
| Mass | 249 (66.0) | |
| Mass with microcalcifications | 10 (2.7) | |
| Architectural distortion | 8 (2.1) | |
| Enhancement MRI | 5 (1.3) | |
| Without radiological findings | 4 (1.1) | |
| Quadrant, N (%) | Lower | 68 (18.0) |
| Middle | 83 (22.0) | |
| Upper | 226 (59.9) | |
| Side, N (%) | Left | 177 (46.9) |
| Right | 200 (53.1) | |
| BIRADS, N (%) | 4a | 117 (31.3) |
| 4b | 82 (21.9) | |
| 4c | 111 (29.7) | |
| 5 | 64 (17.1) | |
| Missing | 3 | |
| Density (ACR), N (%) | A | 4 (1.1) |
| B | 79 (21.0) | |
| C | 247 (65.5) | |
| D | 47 (12.5) | |
| Background, N (%) | Minimal | 250 (66.3) |
| Mild | 70 (18.6) | |
| Moderated | 35 (9.3) | |
| Marked | 22 (5.8) |