Table 3.
Correlation Between PROMIS Measures and Other Patient-Reported Outcome Measures
| PRO Measure | PROMIS Mobility |
PROMIS PI |
||||
|---|---|---|---|---|---|---|
| r Value | P Value | Correlation Strength | r Value | P Value | Correlation Strength | |
| Measuring physical function | ||||||
| IKDC | 0.81 | <.01 | High | −0.75 | <.01 | High |
| PROMIS mobility | 1 | — | — | −0.63 | <.01 | High-Moderate |
| Not measuring physical function | ||||||
| PROMIS PI | −0.63 | <.01 | High-Moderate | 1 | — | — |
| SANE | 0.46 | <.01 | Moderate | −0.40 | <.01 | Moderate |
| MARX | −0.01 | .64 | Weak | 0.04 | .18 | Weak |
IKDC, International Knee Documentation Committee Score; MARX, Marx Knee Activity Rating Scale; PROMIS Mobility, PROMIS Mobility Computer Adaptive Test; PROMIS PI, PROMIS Pain Interference Computer Adaptive Test; PRO, Patient reported outcome; SANE, Single Assessment Numeric Evaluation.