TABLE 3.

Examination Testing for FAI and Hip Instability^a

Diagnostic Examination	Sensitivity	Specificity	Positive Predictive Value	Negative Predictive Value	Positive Likelihood Ratio	Negative Likelihood Ratio
FAI (n = 110)
FPAW	61	56b	63	54	1.4	0.7
FADIR	96b	11	57	71	1.1	0.4
Hip instability (n = 54)
FPAW	67	70	45	85	2.2	0.5
FABER	54	90b	67	84	5.4	0.5

^aData are reported as percentages. FABER, flexion abduction external rotation; FADIR, flexion adduction internal rotation; FAI, femoroacetabular impingement; FPAW, foot progression angle walking.

^bGroup comparison using McNemar chi-square test showed statistical significance (P < .05).