Table 1

Post-test probabilities of vertebral fracture (radiograph is the reference standard)

TestPretest probability−LR (95% CI)Post-test probability
Age >74 years0.5%7 and 4%8 0.77 (0.52 to 1.15)0.38%–3.10%
Significant trauma0.5%7 and 4%8 0.77 (0.52 to 1.15)0.38%–3.10%
History of corticosteroid use0.5%7 and 4%8 0.75 (0.51 to 1.13)0.37%–3.03%
  • −LR, negative likelihood ratios.