Results of analysis of potentially diagnostic tests—non-specific hip pain.
| OR (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |
|---|---|---|---|---|---|
| Ober restricted and painful | 13.2 (2.0 to >100) | 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%) |
| MR prom:arom >1.5 | 4.0 (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%) |
| MR MI in 0° Flx | 3.4 (1.1 to 10.4) | 61.0% (44.5% to 75.7%) | 68.4% (43.4% to 87.4%) | 80.6% (62.5% to 92.5%) | 44.8% (26.4% to 64.3%) |
| LR MI in 0° Flx. or AAR 90° Flx* | 3.0 (1.0 to 9.04) | 51.1% (39.7% to 71.5%) | 70.0% (45.7% to 88.1%) | 79.3% (60.3% to 92.0%) | 43.8% (26.4% to 62.3%) |
| Passive Flexion | 0.22 (0.07 to 0.69) | 34.1% (20.1% to 50.6%) | 30.0% (11.9% to 54.3%) | 50.0% (30.6% to 69.4%) | 18.2% (6.98% to 35.5%) |
| Passive LR in 0° Flx | 0.08 (0.02 to 0.30) | 15.4% (5.86% to 30.5%) | 31.6% (12.6% to 56.6%) | 31.6% (12.6% to 56.6%) | 15.4% (5.8% to 30.5%) |
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. The prevalence of GTPS was 67%
Note. The Ober test restricted and painful, the MR ratio test, and the MR MIb positive pain response test provide useful ORs, but a poor negative predictive value.
*=0.5 added to all cells to allow for estimation of OR.
AAR, assessor-applied resistance—maximum isometric contraction (manual resistance); Flx, flexion; LR, lateral rotation; MI, maximum isometric contraction (fixed dynamometer-applied resistance); MR, medial rotation; NPV, negative predictive value; PPV, positive predictive value; prom:arom, ratio of passive range of movement to active range of movement.