Findings to be expected for a fictitious population of 1000 patients with MHI, characterised by an ICH prevalence of 0.083, in combination with a test sensitivity of 0.38 and a specificity of 0.95
| ICH+ | ICH− | |||
| Skull fracture+ | 32 | 46 | 77 | PPV=41% |
| Skull fracrure− | 51 | 871 | 923 | NPV=94% |
| 83 | 917 | 1000 | ||