Table 3.
Marginal prior and posterior medians and lower and upper limits of the posterior equally tailed 95 % credible interval for parameters of diagnostic tests
Variables | Prior information | Both tests combined (independence) | Both tests combined (dependent) | ||
---|---|---|---|---|---|
HRV test | Ewing’s test | HRV test | Ewing’s test | ||
Prevalence | 0.300 (0.120–0.480) | 0.429 (0.278–0.59) | 0.403 (0.222–0.591) | ||
Sensitivity | 0.850 (0.720–0.980) | 0.837 (0.681–0.948) | 0.878 (0.748–0.962) | 0.821 (0.626–0.95) | 0.852 (0.698–0.956) |
Specificity | 0.850 (0.720–0.980) | 0.837 (0.696–0.941) | 0.745 (0.591–0.891) | 0.797 (0.636–0.927) | 0.695 (0.529–0.888) |
Accuracy | 0.850 (0.720–0.980) | 0.835 (0.727–0.919) | 0.810 (0.705–0.9) | 0.807 (0.666–0.911) | 0.774 (0.647–0.894) |
PPV | 0.708 (0.260–0.978) | 0.796 (0.582–0.934) | 0.720 (0.497–0.902) | 0.733 (0.451–0.916) | 0.651 (0.375–0.901) |
NPV | 0.923 (0.950–0.982) | 0.874 (0.69–0.967) | 0.892 (0.743–0.97) | 0.873 (0.639–0.972) | 0.876 (0.71–0.970) |
ρP | 0.335 (0.017–0.838) | ||||
ρN | 0.344 (0.016–0.838) |
Date represent to be mean and 95 % CI, PPV positive predictive value, NPV negative predictive value, ρ P correlation coefficients of sensitivities of two tests, ρ N correlation coefficients of specificities of two tests