Table 2.
Comparison of mammography and histology
| Mean histologic diameter | Mean mammographic diameter | Mean difference | Mean relative difference (% mammographic tumor diameter) | SD Histologic diameter | SD mammographic diameter | N | |
|---|---|---|---|---|---|---|---|
| Overall | 21.01 | 20.41 | 0.6012 | 14.85 | 12.5 | 11.91 | 4230 |
| Endocrine non-responsive | 23.33 | 23.42 | −0.09015 | 11.08 | 13.603 | 13.431 | 599 |
| Incomplete endocrine responsive | 20.45 | 20.05 | 0.39892 | 13.50 | 12.347 | 11.308 | 930 |
| Highly endocine responsive | 20.70 | 19.87 | 0.82993 | 16.15 | 12.246 | 11.663 | 2693 |
| Not applicable | 17.50 | 18.62 | −1.125 | 16.52 | 7.426 | 7.425 | 8 |
| Ductal invasive | 20.59 | 20.30 | 0.2864 | 12.99 | 11.63 | 11.55 | 3132 |
| Lobular invasive | 23.61 | 20.68 | 2.9325 | 31.22 | 15.97 | 13.32 | 474 |
| G1 | 15.00 | 15.44 | −0.435 | 7.551 | 10.66 | 10.22 | 423 |
| G2 | 20.16 | 19.65 | 0.5078 | 15.023 | 11.44 | 11.32 | 2623 |
| G3 | 25.05 | 23.87 | 1.1782 | 17.078 | 14.02 | 12.78 | 1184 |
| pT1 | 13.52 | 15.13 | −1.612 | 3.881 | 5.242 | 8.134 | 2408 |
| pT2 | 28.51 | 26.11 | 2.399 | 24.427 | 6.995 | 10.127 | 1693 |
| pT3 | 62.6 | 44.28 | 18.318 | 93.960 | 21.265 | 23.583 | 129 |
| Age <50 years | 21.11 | 20.05 | 1.0606 | 16.54 | 12.54 | 11.53 | 808 |
| Age 50–70 years | 19.65 | 19.10 | 0.5579 | 16.12 | 12.18 | 11.49 | 2210 |
| Age >70 years | 23.44 | 23.06 | 0.3757 | 11.44 | 12.67 | 12.47 | 1211 |