Table 1.

The diagnostic features of sacroiliac joint provocation tests (acute inflammation in MRI are taken as standard)

	Sacroiliac compression test		Sacroiliac distraction test		FABER-Patrick		Sacral thrust test		Drop test

	Dx	MRI	Dx	MRI	Dx	MRI	Dx	MRI	Dx	MRI

Prevalance	0.41	0.41	0.65	0.65	0.61	0.35	0.76	0.76	0.43	0.43
Sensitivity	0.43	0.53	0.71	0.77	0.46	0.43	0.79	0.87	0.61	0.53
Spesifity	0.61	0.76	0.43	0.52	0.78	0.76	0.26	0.38	0.78	0.71
PPV	0.57	0.76	0.61	0.70	0.72	0.72	0.56	0.67	0.77	0.73
NPV	0.47	0.53	0.56	0.61	0.55	0.48	0.50	0.67	0.62	0.52
LR+	1.10	2.24	1.26	1.61	2.14	1.82	1.06	1.40	2.79	1.87
LR-	0.94	0.61	0.66	0.45	0.68	0.74	0.82	0.35	0.50	0.65
Accuracy	0.51	0.63	0.59	0.67	0.35	0.57	0.55	0.67	0.69	0.61

Dx, diagnosis; PPV, Positive predictive value; NPV, negative predictive value; LR, likelihood ratio.