Table 4 Combination between negative calculated DD cutoff and pretest score compared with radiology
| Â | Radiology positive | Radiology negative | Total |
|---|---|---|---|
(Disease present) | (Disease absent) | ||
Test with calculated cutoff (DD negative with high PTP score) | 8 (12.1%) | 25 (37.8%) | 33 (50%) |
Test with calculated cutoff (DD negative with low PTP score) | 0 | 33 (50%) | 33 (50%) |
Total | 8 (12.1%) | 58 (87.8%) | 66 (100%) |