Table 2.
Results from the DiD analyses based on entropy balancing
| Outcomes | Unadjusted | Adjusted | ||
|---|---|---|---|---|
| DiD estimate | Std. Err. | DiD estimate | Std. Err. | |
| One-year follow-up | ||||
| Gain EQ-5D_index | −0.004 | 0.017 | −0.003 | 0.011 |
| Gain Health_VAS | −0.202 | 1.129 | −0.203 | 0.688 |
| Reduction Pain_VAS | 0.195 | 1.751 | 0.073 | 0.991 |
| Satisfaction_VAS | 0.320 | 1.296 | 0.310 | 1.366 |
| Six-years follow-up | ||||
| Gain EQ-5D_index | 0.011 | 0.015 | 0.012 | 0.010 |
| Gain Health_VAS | 1.317 | 1.575 | 1.238 | 1.455 |
| Reduction Pain_VAS | 0.715 | 1.747 | 0.650 | 0.974 |
| Satisfaction_VAS | 0.437 | 1.150 | 0.431 | 1.159 |
Notes: None of the estimates are statistically significant. DiD difference-in-difference, Std. err. standard error