Table 2 Kappa (κ)-statistics according to the BI-RADS and Tabár classification
|
Agreement absolute (%) |
Total κ (95% CI) |
Cases κ (95% CI) |
Controls κ (95% CI) |
Left κ (95% CI) |
Right κ (95% CI) |
Total ICC* (95% CI) | |
|---|---|---|---|---|---|---|---|
| Breasts | n=765 | n=765 | n=242 | n=523 | n=383 | n=382 | n=765 |
| BI-RADS | |||||||
| 4-categories | 77.6 |
0.68 (0.64-0.72) |
0.65 (0.57-0.73) |
0.69 (0.64-0.74) |
0.71 (0.66-0.77) |
0.65 (0.59-0.71) |
0.88 (0.81-0.92) |
| Low/high-risk | 88.9 |
0.74 (0.68-0.79) |
0.75 (0.66-0.83) |
0.72 (0.65-0.78) |
0.74 (0.66-0.81) |
0.75 (0.67-0.82) | - |
| Tabár | |||||||
| 5-categories | 74.5 |
0.64 (0.60-0.69) |
0.56 (0.47-0.63) |
0.67 (0.62-0.72) |
0.70 (0.64-0.75) |
0.59 (0.53-0.65) | - |
| Low/high-risk | 88.2 |
0.70 (0.63-0.80) |
0.72 (0.63-0.80) |
0.67 (0.58-0.75) |
0.75 (0.69-0.82) |
0.65 (0.55-0.73) | - |
| Women | n=384 | n=384 | n=122 | n=262 | n=384 | ||
| BI-RADS | |||||||
| 4-categories | 77.3 |
0.68 (0.63-0.74) |
0.60 (0.49-0.71) |
0.72 (0.65-0.78) |
0.89 (0.79-0.93) | ||
| Low/high-risk | 87.5 |
0.73 (0.66-0.79) |
0.69 (0.57-0.81) |
0.73 (0.63-0.81) | - | ||
| Tabár | |||||||
| 5-categories | 74.7 |
0.65 (0.59-0.71) |
0.55 (0.44-0.67) |
0.69 (0.61-0.75) | - | ||
| Low/high-risk | 89.6 |
0.77 (0.70-0.84) |
0.80 (0.69-0.90) |
0.73 (0.63-0.83) | - |
