Predictors by history exam | Sensitivity | Specificity | LR+ | LR- | Adjusted OR (95% CI) |
---|---|---|---|---|---|
Pain worse in leg than in back | 82% | 54% | 1.78 | 0.33 | 4.5 (3.3 to 6.2) |
Typical dermatomal distribution | 89% | 31% | 1.29 | 0.35 | 3.2 (2.2 to 4.7) |
Pain worse on coughing, sneezing, or straining | 50% | 67% | 1.52 | 0.75 | 2.0 (1.4 to 2.7) |
Predictors by physical examination | |||||
---|---|---|---|---|---|
*Diagnostic terms defined in glossary; OR = odds ratio. Sensitivity, specificity, and LRs calculated using data in article and ORs derived using multiple logistic regression analysis. | |||||
Paresis | 27% | 93% | 3.86 | 0.78 | 5.2 (3.3 to 11.6) |
Finger floor distance >25 cm v 0 to 4 cm | 45% | 74% | 1.73 | 0.74 | 2.8 (1.9 to 4.3) |