Table 4.
Percentage of Patients Who Achieved MCID by Satisfaction Group.a
| Variable | Satisfied, n (%) | Uncertain, n (%) | Dissatisfied, n (%) | P |
|---|---|---|---|---|
| NDI achieved MCID | 126 (70.8) | 34 (44.7) | 4 (25.0) | |
| NDI did not achieve MCID | 52 (29.2) | 42 (55.3) | 12 (75.0) | <.001 |
| EQ-5D achieved MCID | 73 (41.0) | 27 (35.5) | 3 (18.8) | |
| EQ-5D did not achieve MCID | 105 (59.0) | 49 (64.5) | 13 (81.3) | .1836 |
| VAS arm achieved MCID | 127 (71.3) | 31 (40.8) | 2 (12.5) | |
| VAS arm did not achieve MCID | 51 (28.7) | 45 (59.2) | 14 (87.5) | <.001 |
| VAS neck achieved MCID | 105 (59.0%) | 18 (23.7) | 3 (18.8) | |
| VAS neck did not achieve MCID | 73 (41.0) | 58 (76.3) | 13 (81.2) | <.001 |
| SF-36 PCS achieved MCID | 134 (75.3) | 38 (50.0) | 7 (43.8) | |
| SF-36 PCS did not achieve MCID | 44 (24.7) | 38 (50.0) | 9 (56.2) | <.001 |
Abbreviations: MCID, minimal clinical important difference; NDI, Neck Disability Index; SF-36 PCS, Short Form–36 Physical Component Summary; VAS, visual analogue scale.
aChi-square test.