Reliability (Cronbach α) | Criterion for Meaningful Change | Patients Experiencing Meaningful Improvement (No.) (%) | Patients Experiencing No Change (No.) (%) | Patients Experiencing Meaningful Decline (No.) (%) | |
---|---|---|---|---|---|
RMDI | |||||
3 mo | 0.88 | 5.2 | 4 (4%) | 67 (74%) | 19 (21%) |
6 mo | 2 (2%) | 50 (71%) | 18 (25%) | ||
EQ-5D | |||||
3 mo | 0.56 | 0.3 | 1 (1%) | 74 (85%) | 12 (13%) |
6 mo | 2 (2%) | 57 (82%) | 10 (14%) | ||
NRS | |||||
3 mo | N/A | 2.0 | 38 (42%) | 41 (45%) | 11 (12%) |
6 mo | 29 (41%) | 34 (48%) | 7 (10%) | ||
PF | |||||
3 mo | 0.88 | 6.2 | 6 (8%) | 56 (82%) | 6 (8%) |
6 mo | 4 (9%) | 35 (81%) | 4 (9%) | ||
PI | |||||
3 mo | 0.91 | 4.5 | 7 (10%) | 41 (59%) | 21 (30%) |
6 mo | 5 (11%) | 26 (60%) | 12 (27%) | ||
PB | |||||
3 mo | 0.79 | 4.4 | 3 (4%) | 61 (85%) | 7 (9%) |
6 mo | 2 (4%) | 37 (86%) | 4 (9%) |
Note:—PB indicates PROMIS Pain Behavior Scale; PF, PROMIS Physical Function Scale; PI, Pain Interference.