Results of the patient-reported mental health measures (RAND and EQ-5D) and pain intensity (NDI), with comparisons between depressed and nondepressed groups, as well as within both groups before and after the operation.
| Outcome Measure | Depression Cohort (n = 23) | Nondepression Cohort (n = 49) | P |
| RAND | |||
| MCS preoperative | 48.34 | 78.56 | <0.0001 |
| MCS postoperative | 66.78 | 82.63 | <0.001 |
| Mean Δ | 8.70 | 4.04 | 0.001 |
| P | 0.0001 | 0.04 | |
| EQ-5D | |||
| MHD preoperative | 2.39 | 1.4 | <0.0001 |
| MHD postoperative | 1.78 | 1.3 | 0.01 |
| Mean Δ | 0.60 | 0.125 | 0.04 |
| P | 0.01 | 0.28 | |
| Pain | |||
| Preoperative | 2.3 | 1.98 | 0.17 |
| Postoperative | 1.04 | 0.83 | 0.34 |
| Mean Δ | 1.26 | 1.15 | 0.70 |
| P | 0.001 | <0.0001 |
Boldface indicates statistically significant findings.
EQ-5D, EuroQol 5-dimension; MCS, Mental Composite Score; MHD, mental health domain; NDI, Neck Disability Index.