Group | Cases | Age | Size | Lesion location | X-ray manifestation | BI-RADS | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right | Left | Lumps | Calcification | Lumps and calcifications | Structural distortion | Asymmetric densification | 4a | 4b | 4c | 5 | ||||
Training group | 211 | 53.32 ± 14.03 | 32.10 ± 18.23 | 103 | 108 | 71 | 25 | 45 | 31 | 39 | 50 | 48 | 56 | 57 |
Verification group | 108 | 54.75 ± 15.08 | 28.95 ± 17.01 | 58 | 50 | 27 | 18 | 27 | 25 | 11 | 31 | 23 | 25 | 29 |
P value | 0.456 | 0.147 | 0.409 | 8.901 | 0.802 | |||||||||
Statistics | − 0.746a | − 1.452a | 0.683b | 0.064b | 0.995 |