Table 3.
Unadjusted Performance Measurements for Screening Mammography (N = 100 622)
| Characteristic | Rate (95% Confidence Interval)
|
||
|---|---|---|---|
| Recall* | Sensitivity (True-Positive Rate) | Specificity (1 - False-Positive Rate) | |
| Total | 11.9 (11.7–12.1) | 86.0 (83.3–88.5) | 88.6 (88.4–88.8) |
| Body mass index category | |||
| Underweight or normal weight | 11.5 (11.2–11.8) | 84.6 (79.8–88.6) | 89.0 (88.7–89.3) |
| Overweight | 12.2 (11.9–12.6) | 85.9 (80.7–90.2) | 88.3 (88.0–88.7) |
| Obesity class I | 12.3 (11.8–12.8) | 86.2 (78.6–91.9) | 88.3 (87.8–88.8) |
| Obesity classes II-III | 12.1 (11.5–12.7) | 91.3 (82.8–96.4) | 88.5 (87.9–89.0) |
| Age, y | |||
| 40–44 | 13.3 (12.7–13.9) | 87.5 (73.2–95.8) | 86.9 (86.4–87.5) |
| 45–49 | 13.4 (12.8–13.9) | 76.8 (65.1–86.1) | 86.9 (86.4–87.5) |
| 50–54 | 12.8 (12.3–13.3) | 83.5 (74.9–90.1) | 87.6 (87.1–88.1) |
| 55–59 | 12.0 (11.4–12.6) | 82.6 (73.3–89.7) | 88.6 (88.0–89.1) |
| 60–64 | 11.3 (10.7–11.9) | 90.2 (82.2–95.4) | 89.5 (88.8–90.1) |
| 65–69 | 11.2 (10.6–11.9) | 87.5 (78.7–93.6) | 89.5 (88.9–90.1) |
| 70–74 | 9.8 (9.2–10.4) | 89.4 (81.3–94.8) | 91.1 (90.5–91.7) |
| ≥75 | 9.9 (9.4–10.5) | 88.7 (81.8–93.7) | 90.9 (90.4–91.4) |
| Breast density | |||
| Almost entirely fat | 6.1 (5.6–6.6) | 96.6 (82.2–99.9) | 94.2 (93.7–94.7) |
| Scattered fibroglandular tissue | 10.5 (10.2–10.8) | 91.3 (87.3–94.3) | 90.0 (89.7–90.3) |
| Heterogeneously dense | 13.9 (13.5–14.2) | 83.4 (78.6–87.5) | 86.7 (86.3–87.0) |
| Extremely dense | 14.1 (13.5–14.7) | 75.8 (66.1–83.8) | 86.5 (85.8–87.1) |
*
Recall rate was defined as the number of examination results interpreted as positive divided by the total number of examinations.