Table 3

Results of analysis of potentially diagnostic tests—lateral hip pain (LHP).

OR (95% CI)Sensitivity (95% CI)Specificity (95% CI)PPV (95% CI)NPV (95% CI)
Faber, painful43.7 (8.9% to N/C)82.9% (67.9% to 92.8%)90.0% (68.3% to 98.8%)94.4% (81.3% to 99.3%)72.0% (50.6% to 87.9%)
Abd or MR, MI in 0° flexion23.3 (6.0% to 91%)85.4% (70.8% to 94.4%)80.0% (56.3% to 94.3%)89.7% (75.8% to 97.1%)72.7% (49.8% to 89.3%)
Flx/Add15.0 (3.32% to N/C)62.5% (45.8% to 77.3%)90.0% (68.3% to 98.8%)92.6% (75.7% to 99.1%)54.5% (36.4% to 71.9%)
MR MI in 0° Flx, or AAR 90° Flx14.1 (3.1% to N/C)61.0% (44.5% to 75.8%)90.0% (68.3% to 98.8%)92.6% (75.7% to 99.1%)52.9% (35.1% to 70.2%)
MR MI in 0° Flx13.3 (2.9% to N/C)‡61.0% (44.5% to 75.8%89.5% (66.9% to 98.7%92.6% (75.7% to 99.1%)51.5% (33.5% to 69.2%)
Ober, restricted and painful13.2 (2.0% to N/C)41.0% (25.6% to 57.9%)95.0% (75.1% to 99.9%)94.1% (71.3% to 99.9%)45.2% (29.8% to 61.3%)
Abd. MI 0° Flx8.0 (2.1% to 29.4%)58.5% (42.1%to 73.7%85.0% (62.1% to 96.8%)88.9% (70.8% to 97.6%)50.0% (32.4% to 67.6%)
MR prom:arom > 1.54.0 (1.3% to 12.4%)63.4% (46.9% to 77.9%)70.0% (45.7% to 88.1%)81.3% (63.6% to 92.8%)48.3% (29.4% to 67.5%)
LR MI in 0° Flx, or AAR 90° Flx*0.1 (0.0 to 1.1)71.8% (55.1% to 85.0%)0.0% (0.0% to 16.8%)58.3% (43.2% to 72.4%)0.0% (0.0% to 28.5%)
  • This table presents the performance of diagnostic tests to differentiating the diagnosis for greater trochanteric pain syndrome (GTPS) from hip osteoarthritis (OA) in this sample. This is based on the person differentiating the location of their pain to the lateral hip or other than the lateral hip. The prevalence of GTPS was 67%.

  • *=0.5 added to all cells to allow for estimation of OR.

  • AAR, assessor-applied resistance—maximum isometric contraction (manual resistance); Abd, abduction; Add, adduction; Flx, flexion; LR, lateral rotation; MI, maximum isometric contraction (fixed dynamometer-applied resistance); MR, medial rotation; N/C, not calculable; NPV, negative predictive value; PPV, positive predictive value;prom:arom, ratio of passive range of movement to active range of movement.