Table 2.
Longitudinal comparison of primary outcomes in patients with chronic neck pain treated with either UG-MSN release or UG-DN.
| Outcome | Baseline | 3 months | 6 months |
|---|---|---|---|
| Visual analog scale (VAS) | |||
| UG-MSN release | 6.8 ± 1.6 | 3.3 ± 1.2 | 3.8 ± 1.2 |
| UG-DN | 7.1 ± 1.8 | 4.2 ± 1.5 | 5.8 ± 1.4 |
| * P value | <0.0001 | <0.0001 | |
| Neck disability index (NDI) | |||
| UG-MSN release | 17.9 ± 8.3 | 6.4 ± 3.7 | 7.1 ± 2.6 |
| UG-DN | 16.0 ± 5.4 | 8.8 ± 4.5 | 12.2 ± 5.5 |
| * P value | <0.0001 | <0.0001 | |
| SF-36 physical component score (PCS) | |||
| UG-MSN release | 41.3 ± 14.0 | 49.2 ± 14.1 | 55.1 ± 19.0 |
| UG-DN | 43.6 ± 16.1 | 44.1 ± 13.6 | 47.9 ± 21.5 |
| * P value | 0.013 | 0.024 | |
| SF-36 mental component score (MCS) | |||
| UG-MSN release | 43.4 ± 12.6 | 49.4 ± 14.6 | 51.4 ± 14.5 |
| UG-DN | 44.4 ± 16.8 | 49.0 ± 15.2 | 50.8 ± 16.7 |
| * P value | 0.778 | 0.801 |
Data are expressed as mean ± SD.
*Based on analyses of covariance in which the primary outcome was the response variable and treatment was the explanatory variable; results were adjusted for baseline differences in the response variable.