- Inter-rater agreement between the 2 raters of the lesions.
| Inter-rater | Rater 1 | K-values* | ||
|---|---|---|---|---|
| Rater 2 | BIRADS | |||
| Observer 2 | 4A | 4B | 4C | |
| BIRADS 4A | 121 (89.6) | 30 (44.1) | 0 (0.0) | 0.79 (0.73-0.85) |
| BIRADS 4B | 12 (8.9) | 30 (44.1) | 6 (13.6) | |
| BIRADS 4C | 2 (1.5) | 8 (11.8) | 38 (86.4) | p<0.001 |
| Total | 135 | 68 | 44 | |
Values are presented as numbers and percentages (%).
BIRADS: breast-imaging reporting and data system
↵* Weighted Cohen’s Kappa (K) value and 95% confidence interval (CI).