Table 8. Number needed to scan for low and high pre-test probability patients.
Pre-test probability | ||
High (81%) | Low (19%) | |
Low pre-test probability (deciding order CT) | ~6 | |
High pre-test probability (deciding to place NGT pre-CT) | ~1.3 |
Pre-test probability | ||
High (81%) | Low (19%) | |
Low pre-test probability (deciding order CT) | ~6 | |
High pre-test probability (deciding to place NGT pre-CT) | ~1.3 |