Reader 2 | ||||||
---|---|---|---|---|---|---|
Reader 1 | D1 | D2 | D3 | D4 | Total | High/low-risk |
D1 | 131 (282) | 1 (7) | 0 (0) | 0 (0) | 132 (289) | 229; 60% |
D2 | 15 (40) | 81 (160) | 1 (4) | 0 (0) | 97 (204) | (493; 64%) |
D3 | 0 (0) | 46 (80) | 58 (113) | 0 (3) | 104 (196) | 155; 40% |
D4 | 0 (0) | 1 (1) | 23 (36) | 27 (39) | 51 (76) | (272; 36%) |
Total | 146 (322) | 129 (248) | 82 (153) | 27 (42) | 384 (765) | P<0.0001 |
High/low-risk | 275; 72% (570; 75%) | 109; 28% (195; 25%) | ||||
Agreement | Women (%) | Breasts (%) | ||||
Absolute agreement: | 77.3 | 77.6 | ||||
D1/D2 disagreement: | 4.2 | 6.1 | ||||
D2/D3 disagreement: | 12.2 | 11.0 | ||||
D3/D4 disagreement: | 6.0 | 5.1 | ||||
Two-grade disagreement: | 0.3 | 0.1 | ||||
High/low-risk agreement: | 87.5 | 88.9 |