Table 3.
Area Under the Curve (AUC) Values With Different WOMAC Pain and Difficulty Cutpoints for the BU-OA-FPS and Boston University Osteoarthritis PROa
| WOMAC Pain Cutpoints for BU-OA-FPS and BU-OA-PRO | ||
|---|---|---|
| BU-OA-FPS | BU-OA-PRO | |
| Median WOMAC pain score (10b) | 0.831 | 0.817 |
| 55th percentile WOMAC pain score (11) | 0.819 | 0.810 |
| 65th percentile WOMAC pain score (12) | 0.823 | 0.829 |
| 75th percentile WOMAC pain score (13) | 0.813 | 0.824 |
| 85th percentile WOMAC pain score (15) | 0.833 | 0.852 |
| 95th percentile WOMAC pain score (17) | 0.773 | 0.809 |
| WOMAC Difficulty Cutpoints for BU-OA-FPS and BU-OA-PRO | ||
|---|---|---|
| Median WOMAC difficulty score (34b) | 0.883 | 0.850 |
| 55th percentile WOMAC difficulty score (36) | 0.866 | 0.832 |
| 65th percentile WOMAC difficulty score (40) | 0.865 | 0.837 |
| 75th percentile WOMAC difficulty score (44) | 0.874 | 0.866 |
| 85th percentile WOMAC difficulty score (50) | 0.876 | 0.868 |
| 95th percentile WOMAC difficulty score (57) | 0.866 | 0.870 |
aBU-OA-FPS = Boston University Osteoarthritis Functional Pain Short Form; BU-OA-PRO = Boston University Osteoarthritis Patient-Reported Outcome; WOMAC = Western Ontario & McMaster Universities Osteoarthritis Index.
bCutpoint value for WOMAC.