Table 1.
Comparison of ultrasound and histology
| Mean histologic diameter | Mean sonographic diameter | Mean difference | Mean relative difference (% sonogaphic tumor diameter) | SD Histologic diameter | SD Sonographic diameter | N | |
|---|---|---|---|---|---|---|---|
| Overall | 20.78 | 18.25 | 2.534 | 21.08 | 12.29 | 9.629 | 5902 |
| Endocrine non-responsive | 23.77 | 21.10 | 2.666 | 17.24 | 13.98 | 10.205 | 848 |
| Incomplete endocrine responsive | 19.88 | 18.18 | 1.702 | 16.91 | 11.60 | 10.408 | 1224 |
| Highly endocine responsive | 20.43 | 17.62 | 2.811 | 23.44 | 12.00 | 9.078 | 3817 |
| Not applicable | 14.69 | 23.46 | −8.769 | −29.05 | 12.85 | 16.179 | 13 |
| Ductal invasive | 20.41 | 18.31 | 2.097 | 18.28 | 11.69 | 9.663 | 4257 |
| Lobular invasive | 23.42 | 17.72 | 5.699 | 43.13 | 14.97 | 9.627 | 737 |
| G1 | 15.03 | 14.48 | 0.5521 | 11.15 | 9.824 | 9.191 | 652 |
| G2 | 20.08 | 17.61 | 2.4675 | 21.97 | 11.678 | 9.317 | 3636 |
| G3 | 24.69 | 21.21 | 3.4854 | 23.08 | 13.289 | 9.697 | 1614 |
| pT1 | 13.52 | 14.03 | −0.5067 | 6.024 | 5.159 | 7.066 | 3450 |
| pT2 | 28.45 | 23.34 | 5.1141 | 35.658 | 6.989 | 8.347 | 2265 |
| pT3 | 61.84 | 34.45 | 27.3904 | 122.220 | 17.761 | 16.055 | 187 |
| Age <50 years | 20.06 | 17.70 | 2.353 | 21.99 | 12.40 | 9.127 | 1295 |
| Age 50–70 years | 19.65 | 17.12 | 2.509 | 21.80 | 11.91 | 9.477 | 3042 |
| Age >70 years | 23.00 | 10.50 | 12.500 | 93.33 | 21.21 | 6.364 | 2 |