Table III.
Area under curve
| AUC (95% CI) | Mean difference (95% CI) | P value | Cutoff value | Sensitivity | Specificity | |
|---|---|---|---|---|---|---|
| AH interval | 0.757 (0.695-0.818) | Reference | 9.8 mm | 0.68 | 0.73 | |
| UMI ([AH interval + r]/r) | 0.767 (0.606-0.828) | −0.010 (−0.042 to 0.022) | .545 | 1.32 | 0.61 | 0.83 |
| GHCC | 0.645 (0.572-0.718) | 0.112 (0.043-0.181) | .001 | 0.3 mm | 0.52 | 0.73 |
| GHa | 0.683 (0.609-0.756) | 0.074 (0.009-0.139) | .027 | 0.2 mm | 0.41 | 0.88 |
| SHC | 0.579 (0.492-0.666) | 0.178 (0.100-0.256) | <.001 | 5.2 mm | 0.89 | 0.28 |
AUC, area under curve; CI, confidence interval; AH, acromiohumeral; UMI, upward migration index; r, radius; GHCC, glenohumeral center-to-center measurement; GHa, glenohumeral arc measurement; SHC, scapular spine–humeral head center method.