Table 3. Association between SWVmean and Biological Characteristics of Invasive Cancers.
| Variable | SWVmean − QM (m/s) | P | SWVmean + QM (m/s) | P |
|---|---|---|---|---|
| Histologic grade† | 0.303 | 0.744 | ||
| Grade I (n = 3) | 3.40 ± 0.40 | 3.96 ± 0.48 | ||
| Grade II (n = 82) | 4.05 ± 1.07 | 4.65 ± 1.26 | ||
| Grade III (n = 81) | 4.00 ± 0.92 | 4.70 ± 1.15 | ||
| Lymph-vascular status | 0.036* | 0.005* | ||
| Positive (n = 62) | 4.24 ± 0.90 | 4.95 ± 1.02 | ||
| Negative (n = 120) | 3.89 ± 1.04 | 4.44 ± 1.28 | ||
| Axillary lymph node | 0.089 | 0.005* | ||
| Positive (n = 65) | 4.20 ± 1.07 | 4.95 ± 1.27 | ||
| Negative (n = 117) | 3.90 ± 0.95 | 4.42 ± 1.15 | ||
| ER status | 0.752 | 0.039* | ||
| Positive (n = 138) | 4.00 ± 1.03 | 4.40 ± 1.16 | ||
| Negative (n = 44) | 4.04 ± 0.94 | 5.21 ± 1.21 | ||
| PR status | 0.353 | 0.042* | ||
| Positive (n = 105) | 4.05 ± 1.02 | 4.46 ± 1.18 | ||
| Negative (n = 77) | 3.96 ± 0.98 | 4.82 ± 1.25 | ||
| HER2 status | 0.154 | 0.006* | ||
| Positive (n = 48) | 4.22 ± 0.96 | 5.06 ± 1.23 | ||
| Negative (n = 134) | 3.94 ± 1.01 | 4.46 ± 1.18 | ||
| Ki67 status | 0.320 | 0.500 | ||
| Positive (n = 155) | 3.98 ± 0.97 | 4.60 ± 1.20 | ||
| Negative (n = 27) | 4.18 ± 1.19 | 4.66 ± 1.32 | ||
| Molecular subtype | 0.571 | 0.001* | ||
| Luminal A (n = 23) | 4.09 ± 1.18 | 4.53 ± 1.22 | ||
| Luminal B (n = 117) | 4.00 ± 1.00 | 4.43 ± 1.19 | ||
| Her2-enriched (n = 22) | 4.15 ± 0.76 | 5.46 ± 0.96 | ||
| Triple negative (n = 20) | 3.80 ± 1.04 | 4.84 ± 1.30 |
Data are number of findings. *Indicates significant difference, †Histologic grade was only classified among 166 invasive ductal carcinomas and other biological characteristics were classified among 182 invasive breast carcinomas. ER = estrogen receptor, HER2 = human epidermal growth factor receptor, PR = progesterone receptor