Table 1 Demographics in cancer cases.
From: Applying Data-driven Imaging Biomarker in Mammography for Breast Cancer Screening: Preliminary Study
Train (n = 3101) | Validation (n = 619) | Test (n = 619) | P value | |
|---|---|---|---|---|
Density | 0.7843 | |||
almost entire fat | 196 (6.32) | 32 (5.2) | 31 (5.0) | |
scattered fibroglandular densities | 640 (20.6) | 136 (22.0) | 137 (22.1) | |
heterogeneous dense | 1555 (50.2) | 312 (50.4) | 312 (50.4) | |
extremely dense | 710 (22.9) | 139 (22.4) | 139 (22.5) | |
Age | 0.9941 | |||
≥50 | 1759 (56.7) | 350 (56.5) | 350 (56.5) | |
<50 | 1342 (43.3) | 269 (43.5) | 269 (43.5) | |
Manufacturer | 0.9351 | |||
GE | 1226 (39.5) | 238 (38.5) | 251 (40.6) | |
Hologic | 1032 (33.2) | 200 (32.3) | 198 (32.0) | |
Siemens | 843 (27.2) | 181 (29.2) | 170 (27.4) | |
Feature | ||||
mass | 1688 (54.4) | 339 (54.8) | 339 (54.8) | 0.9806 |
non mass | 1413 (45.6) | 280 (45.2) | 280 (45.2) | |
calcifications | 1402 (45.2) | 280 (45.2) | 280 (45.2) | 0.9999 |
non calcifications | 1699 (54.8) | 339 (54.8) | 339 (54.8) | |
Type | 0.2767 | |||
Invasive | 2673 (86.2) | 542 (87.56) | 547 (88.37) | |
Noninvasive | 428 (13.8) | 77 (12.44) | 72 (11.63) | |
Size (invasive) | 0.8409 | |||
Size ≥20 | 1216 (45.5) | 254 (46.9) | 251 (45.9) | |
Size <20 | 1457 (54.5) | 288 (53.1) | 296 (54.1) |
