Table 4.
Agreement between reader 1 and reader 2. A κ < 0.20 was indicative of poor agreement, κ of 0.20–0.40 indicated fair agreement, κ of 0.41–0.60 indicated moderate agreement, κ of 0.61–0.80 indicated good agreement, and κ of 0.81–1.00 indicated very good agreement
| Comparison | κ | p-value |
|---|---|---|
| BPE | 0.573962 | 0 |
| FGT | 0.736386 | 0 |
| Depth | 0.836347 | 0 |
| T2 | 0.427319 | 3.26E−10 |
| DWI | 0.534687 | 6.79E−11 |
| ADC | 0.620233 | 6.23E−10 |
| BI-RADS | 0.247909 | 9.22E−06 |
| Enhancement type | 0.888129 | 0 |
| Shape | 0.569255 | 1.27E−11 |
| Margins | 0.581662 | 3.44E−10 |
| Enhancement (mass) | 0.388235 | 2.92E−05 |
| Distribution | 0.698065 | 0 |
| Enhancement (non-mass) | 0.47231 | 6.93E−08 |
ADC apparent diffusion coefficient, BI-RADS breast imaging-reporting & data system, BPE background parenchymal enhancement, DWI diffusion-weighted imaging, FGT fibroglandular tissue