From: Radiographs in screening for sacroiliitis in children: what is the value?
Rater 1 | Rater 2 | Rater 3 | Rater 4 | Rater 5 | |
---|---|---|---|---|---|
Percentage (95% CI) | |||||
Sensitivity | 25.0 (5.5–57.2) | 44.4 (13.7–78.8) | 77.8 (40.0–97.2) | 70.0 (34.8–93.3) | 76.5 (50.1–93.2) |
Specificity | 89.6 (77.3–96.5) | 92.2 (81.1–97.8) | 60.8 (46.1–74.2) | 80.0 (66.3–90.0) | 72.1 (56.3–84.7) |
PPV | 37.5 (8.5–75.5) | 50.0 (15.7–84.3) | 25.9 (11.1–46.3) | 41.2 (18.4–67.1) | 52.0 (31.3–72.2) |
NPV | 82.7 (69.7–91.8) | 90.4 (79.0–96.8) | 93.9 (79.8–99.3) | 93.0 (80.9–98.5) | 88.6 (73.3–96.8) |
Frequency (%) | |||||
Radiograph–a | |||||
Radiograph–/MRI– | 43 (83) | 47(90) | 31 (94) | 40 (93) | 31 (89) |
Radiograph–/MRI+ | 9 (17) | 5 (10) | 2 (6) | 3 (7) | 4 (11) |
Radiograph+ a | |||||
Radiograph+/MRI– | 5 (63) | 4 (50) | 20 (74) | 10 (59) | 12 (48) |
Radiograph+/MRI+ | 3 (37) | 4 (50) | 7 (26) | 7 (41) | 13 (52) |