Observer | Sensitivity (95% CI) | Specificity (95% CI) | Positive LR (95% CI) | Negative LR (95% CI) |
A First assessment | 55.8 (47.7 to 63.2) | 57.9 (39.5 to 74.7) | 1.32 (0.79 to 2.49) | 0.76 (0.49 to 1.33) |
Second assessment | 55.8 (47.6 to 61.8) | 73.7 (55.0 to 87.3) | 2.12 (1.06 to 4.87) | 0.60 (0.44 to 0.95) |
B First assessment | 53.4 (45.4 to 58.8) | 78.9 (60.5 to 91.0) | 2.53 (1.15 to 6.51) | 0.59 (0.45 to 0.90) |
Second assessment | 46.5 (38.6 to 50.9) | 84.2 (66.4 to 94.2) | 2.94 (1.15 to 8.82) | 0.64 (0.52 to 0.93) |
C First assessment | 27.9 (20.5 to 32.3) | 84.2 (67.5 to 94.2) | 1.77 (0.63 to 5.56) | 0.86 (0.72 to 1.18) |
Second assessment | 27.9 (20.4 to 33.2) | 78.9 (61.9 to 90.9) | 1.32 (0.54 to 3.66) | 0.91 (0.74 to 1.29) |
D First assessment | 44.2 (36.8 to 52.3) | 42.1 (25.3 to 60.5) | 0.76 (0.49 to 1.33) | 1.33 (0.79 to 2.49) |
Second assessment | 48.8 (40.7 to 56.3) | 57.9 (39.6 to 74.8) | 1.16 (0.67 to 2.23) | 0.88 (0.59 to 1.50) |
Positive LR, the probability of a positive test result in patients with disease compared with those who do not have the disease.
Negative LR, the probability of a negative test result in patients with disease compared with those who do not have the disease.