| All patients % (n, 95%CI) | Upper GI % (n, 95%CI) | Lower GI % (n, 95%CI) |
---|---|---|---|
Sensitivity | 82.9 (34/41, 68.7–91.5) | 78.3 (18/23, 58.1–90.3) | 88.9 (16/18, 67.2–96.9) |
Specificity | 75.0 (3/4, 30.1–95.4) | 100 (2/2, 34.2–100) | 50.0 (1/2, 9.5–90.5) |
PPV | 97.1 (34/35, 85.5–99.5) | 100 (18/18, 82.4–100) | 94.1 (16/17, 73.0–99.0) |
NPV | 30.0 (3/10, 10.8–60.3) | 28.6 (2/7, 8.2–64.1) | 33.3 (1/3, 6.1–79.2) |
Accuracy | 82.2 (37/45, 68.7–90.7) | 80.0 (20/25, 60.9–91.1) | 85.0 (17/20, 64.0–94.8) |