Table 4.
Performance of US and MAM screening by age groups in the SBSP
| Screening methods | No. of tests | No. of patients | Sensitivity (%) | PPV (%) |
|---|---|---|---|---|
| US | ||||
| Age group | ||||
| < 45 | 651 | 4 | 75.0 | 25.0 |
| 45-59 | 5261 | 25 | 52.0 | 14.0 |
| 60-69 | 3128 | 21 | 52.4 | 20.4 |
| ≥70 | 221 | 4 | 50.0 | 25.0 |
| MAM | ||||
| Age group | ||||
| < 45 | 644 | 4 | 50.0 | 18.2 |
| 45-59 | 5255 | 26 | 65.4 | 13.4 |
| 60-69 | 3119 | 21 | 66.8 | 22.6 |
| ≥70 | 220 | 4 | 100.0 | 57.1 |
| US + MAM | ||||
| Age group | ||||
| < 45 | 644 | 4 | 75.0 | 15.0 |
| 45-59 | 5245 | 24 | 70.8 | 8.7 |
| 60-69 | 3117 | 21 | 85.7 | 17.7 |
| ≥70 | 220 | 4 | 100.0 | 33.3 |
Abbreviations: US ultrasonography, MAM mammography, PPV positive predictive value.