Table 3.
CT used to identify lung cancer, % (95% CI) | CT used to rule out cancer, % (95% CI) | CT was indeterminate, % (95% CI) | |
---|---|---|---|
Sensitivity | 98 (93–100) | 80 (28–100) | 100 (48–100) |
Specificity | 27 (8–55) | 64 (31–89) | 67 (22–96) |
Positive predictive value | 92 (86–96) | 50 (16–84) | 71 (29–96) |
Negative predictive value | 57 (18–90) | 88 (47–100) | 100 (40–100) |
False-positive rate | 73 | 36 | 33 |
False-negative rate | 2 | 20 | 0 |