Table 2.
Radiologist sensitivity, specificity, and accuracy by country.
| Classification | Radiologist | Sensitivity (95% CI) | Specificity (95% CI) | Accuracy (95% CI) |
|---|---|---|---|---|
| Restricted reading | UK Radiologists | 78.7% (73.2–83.5%) | 76.7% (72.9–80.3%) | 77.4% (74.3–80.3%) |
| Radiologist 1 | 84.6% (77.2–90.3%) | 76.5% (71.1–81.4%) | 79.1% (74.8–83.0%) | |
| Radiologist 2 | 69.1% (55.2–80.9%) | 78.8% (70.1–85.9%) | 75.6% (68.4–81.9%) | |
| Radiologist 3 | 84.0% (70.9–92.8%) | 67.2% (54.6–78.2%) | 74.4% (65.5–82.0%) | |
| Radiologist 4 | 56.5% (34.5–76.8%) | 84.7% (73.0-92.8%) | 76.8% (66.2–85.4%) | |
| Nigerian Radiologists | 77.1% (71.5–82.1%) | 75.8% (71.8–79.4%) | 76.2% (73.1–79.2%) | |
| Radiologist 1 | 87.6% (81.3–92.4%) | 67.9% (62.0-73.4%) | 74.9% (70.6–79.0%) | |
| Radiologist 2 | 61.9% (51.9–71.2%) | 84.6% (79.5–89.0%) | 77.7% (73.0–82.0%) | |
| American Radiologists | 68.6% (62.6–74.2%) | 84.3% (80.9–87.3%) | 79.07% (76.0-81.9%) | |
| Radiologist 1 | 66.8% (60.5–72.7%) | 84.3% (80.7–87.4%) | 78.5% (75.3–81.4%) | |
| Radiologist 2 | 94.1% (71.3–99.9%) | 84.8% (68.1–94.9%) | 88.0% (75.7–95.5%) | |
| Indian Radiologists | 67.1% (61.0-72.8%) | 83.3% (79.8–86.5%) | 77.91% (74.8–80.8%) | |
| Radiologist 1 | 66.3% (54.8–76.4%) | 80.8% (73.7–86.6%) | 75.8% (69.9–81.2%) | |
| Radiologist 2 | 65.5% (45.7–82.1%) | 85.3% (75.3–92.4%) | 79.8% (70.8–87.0%) | |
| Radiologist 3 | 67.8% (59.7–75.2%) | 84.2% (79.4–88.2%) | 78.6% (74.4–82.3%) | |
| Inclusive reading | American Radiologists | 92.3% (88.3–95.2%) | 47.3% (42.9–51.7%) | 62.3% (58.8–65.7%) |
| Radiologist 1 | 91.7% (87.5–94.9%) | 46.0% (41.5–50.5%) | 61.2% (57.5–64.8%) | |
| Radiologist 2 | 100% (80.5–100%) | 66.7% (48.2–82.0%) | 78.0% (64.0-88.5%) | |
| UK Radiologists | 87.2% (82.5–91.0%) | 63.4% (59.1–67.5%) | 71.3% (68.0-74.5%) | |
| Radiologist 1 | 90.0% (83.5–94.6%) | 59.6% (53.5–65.4%) | 69.3% (64.6–73.7%) | |
| Radiologist 2 | 80.0% (67.0-89.6%) | 69.0% (59.6–77.4%) | 72.6% (65.2–79.2%) | |
| Radiologist 3 | 88.0% (75.7–95.5%) | 64.2% (51.5–75.5%) | 74.4% (65.5–82.0%) | |
| Radiologist 4 | 87.0% (66.4–97.2%) | 69.5% (56.1–80.8%) | 74.4% (63.6–83.4%) | |
| Nigerian Radiologists | 86.8% (82.1–90.7%) | 61.1% (56.7–65.3%) | 69.6% (66.3–72.9%) | |
| Radiologist 1 | 91.5% (85.9–95.4%) | 56.6% (50.5–62.5%) | 69.1% (64.5–73.4%) | |
| Radiologist 2 | 80.0% (71.1–87.2%) | 66.4% (60.0-72.3%) | 70.5% (65.4–75.3%) | |
| Indian Radiologists | 82.6% (77.4–87.0%) | 73.6% (69.6–77.4%) | 76.6% (73.5–79.6%) | |
| Radiologist 1 | 82.5% (72.4–90.1%) | 73.1% (65.4–79.9%) | 76.3% (70.3–81.6%) | |
| Radiologist 2 | 75.9% (56.5–89.7%) | 77.3% (66.2–86.2%) | 76.9% (67.6–84.6%) | |
| Radiologist 3 | 83.9% (77.0-89.4%) | 73.0% (67.4–78.1%) | 76.7% (72.5–80.6%) |