Table 4

Pooled diagnostic properties for the diagnosis of FAI/ALT

Measure# studies (sample size)SN (95% CI)SP (95% CI)+LR (95% CI)ue−LR (95% CI)DOR (95% CI)PPV (95% CI)Post-test change
FADDIR (MRA)4 (65, 68, 79, 81) (n=188)0.94 (0.90 to 0.97)0.09 (0.02 to 0.23)1.02 (0.96 to 1.08)0.45 (0.19 to 1.09)5.71 (0.84 to 38.86)0.833 (0.771 to 0.885)Pretest=84%
Post-test=83%
FADDIR (surgery)4 (68, 69, 71, 76) (n=319)0.99 (0.98 to 1.00)0.05 (0.01 to 0.18)1.04 (0.97 to 1.12)0.14 (0.02 to 0.93)7.82 (1.06 to 57.84)0.90 (0.89 to 0.90)Pretest=90%
Post-test= 90%
Flexion IR2 (63, 74) (n=27)0.96 (0.81 to 0.99)0.25 (0.01 to 0.81)1.28 (0.72 to 2.27)0.15 (0.01 to 1.99)8.36 (0.41 to 171.3)0.90 (0.73 to 0.98)Pretest=87%
Post-test=90%
  • DerSimoninian-Laird random-effects models used throughout.

  • DOR, diagnostic OR; FADDIR, flexion, adduction, internal rotation test; +LR, positive likelihood ratio; −LR, negative likelihood ratio; SN, sensitivity; SP, specificity.