Table 1 Descriptive data of the study population
Parameter | Study population |
|---|---|
Women with valid LIBRA score n (%) | 14,730 (100%) |
Recalled women with cancer or interval cancer n (%) | 158 (1.1%) |
Recalled women with cancer n (%) | 136 (0.9%) |
Women with interval cancer n (%) | 22 (0.1%) |
Recalled women n (%) | 655 (4.4%) |
Women biopsied n (%) | 344 (2.3%) |
False positives n (%) | 519 (3.5%) |
PPV-1 (Cancer % of recalled women) | 136/655 (20.8%) |
PPV-3 (Cancer % of women biopsied) | 136/344 (39.5%) |
Breast percent density (%) | |
Mean (SD) | 27.2% (16.5) |
Median (IQR) | 21.6% (21.9) |
Absolute dense area (cm2) | |
Mean (SD) | 37.9 cm2 (18.9) |
Median (IQR) | 33.2 cm2 (22.1) |
BI-RADS density categories (valid n = 13,801)a n (%) | |
1 | 2313 (16.8%) |
2 | 5347 (38.7%) |
3 | 4911 (35.6%) |
4 | 1230 (8.9%) |
Age (years) | |
Median (IQR) | 58 (16) |
Premenopausal (< 55 years) n (%) | 6360 (43.2%) |
Postmenopausal (≥ 55 years) n (%) | 8370 (56.8%) |
Previous screening n (%) | 13,231 (89.8%) |
No previous screening n (%) | 1499 (10.2%) |