Table 6 Value of each predictor in predicting difficult laryngoscopy (n = 304)
Predictors | Odds ratio (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) |
|---|---|---|---|---|---|
C-TMD<1finger | 10.09 (4.19–24.28) | 0.469 (0.325–0.617) | 0.929 (0.877–0.964) | 0.676 (0.484–0.745) | 0.847 (0.825–0.865) |
IID < 3finger | 3.54 (1.55–8.12) | 0.429 (0.288–0.578) | 0.845 (0.778–0.898) | 0.467 (0.418–0.493) | 0.824 (0.746–0.887) |
ULBT>1grade | 2.48 (1.02–6.02) | 0.796 (0.657–0.898) | 0.400 (0.322–0.482) | 0.295 (0.174–0.324) | 0.861 (0.735–0.923) |
Mallampati classification >2grade | 1.77 (0.78–3.91) | 0.691 (0.546–0.817) | 0.503 (0.422–0.584) | 0.306 (0.276–0.371) | 0.839 (0.813–0.908) |