Table 2.
Demographic and clinical features for each group
| Demographic/clinical feature | Vacuum biopsy (n = 65) | Core biopsy (n = 63) |
|---|---|---|
| Age (years), median (range) | 55.6 (47–73) | 55.4 (48–75) |
| Lesion size (mm), median (range) | 10 (2–35) | 8 (2–39) |
| Positive predictive value of biopsy of MM | 16/65 (24.6%) | 23/63 (36.5%) |
| BIRADS density, number (%) | ||
| 1 | 5 (8%) | 6 (10%) |
| 2 | 31 (48%) | 30 (48%) |
| 3 | 28 (43%) | 27 (43%) |
| 4 | 1 (2%) | 0 (0%) |
| Radiology score, number (%) | ||
| M2 | 9 (14%) | 9 (14%) |
| M3 | 49 (75%) | 42 (68%) |
| M4 | 5 (8%) | 10 (16%) |
| M5 | 2 (3%) | 1 (2%) |
| Number of cores, median (range) | 12 (2–36) | 8 (1–18) |
| Duration of biopsy (min), mean (range) | 54.6 (22–125) | 37.0 (16–66) |
| Calcification in cores, number (%) | 59 (91%) | 55 (87%) |
BIRADS, Breast Imaging-Reporting and Data System; MM, mammographic microcalcification.