Pre-test probability of meningitis in children with acute illness (%) | Clinical examination finding | Post-test probability of meningitis (%) | |
Absent | Nuchal rigidity | 0.200 | |
Kernig’s sign | 0.200 | ||
Brudzinski’s sign | 0.170 | ||
0.308 | Present | Nuchal rigidity | 0.640 |
Kernig’s sign | 0.609 | ||
Brudzinski’s sign | 0.527 |
A summary of pretest and post-test probability of meningitis (bacterial and viral) according to clinical examination findings.
Pretest probability derived from ref 3. Post-test probabilities calculated using likelihood ratios from ref 2.