Variables PDC GSIJD SLS
Sensitivity 0.91 0.57 0.67
Specificity 0.56 0.91 0.84
PPV 0.58 0.80 0.74
NPV 0.90 0.76 0.79
P LR 2.10 6.33 4.19
NLR 0.47 0.47 0.39
95% CI 0.60, 0.87 0.64, 0.92 0.63, 0.91
PPV=Positive Predictive Value; NPV= Negative Predictive Value; PLR= Positive Likelihood Ratio; NLR= Negative Likelihood Ratio; 95% CI=95% Confidence Interval
Table 5: Sensitivity, Specificity, Likelihood Ratios and Predictive Values for Posterior Dimple Compression (PDC), Gross Sacro-Iliac Joint Distraction (GSIJD) and Supine-Long Sitting (SLS) Tests