Table 2.
Comparison of VAS scores between the two protocols
| Term | Model 1 | Model 2 | ||
|---|---|---|---|---|
| β (95% CI) | P value | β (95% CI) | P value | |
| Time (0 month as reference) | ||||
| 1 month | -3.7 (-4.002, -3.398) | < 0.001 | -3.7 (-4.002, -3.398) | < 0.001 |
| 3 months | -4.5 (-4.802, -4.198) | < 0.001 | -4.5 (-4.802, -4.198) | < 0.001 |
| 6 months | -4.85 (-5.152, -4.548) | < 0.001 | -4.85 (-5.152, -4.548) | < 0.001 |
| Protocol B (Protocol A as reference) | 0.2 (-0.182, 0.582) | 0.302 | 0.237 (-0.15, 0.624) | 0.227 |
| 1 month: Protocol B | -0.05 (-0.477, 0.377) | 0.817 | -0.05 (-0.477, 0.377) | 0.817 |
| 3 months: Protocol B | 0.15 (-0.277, 0.577) | 0.488 | 0.15 (-0.277, 0.577) | 0.488 |
| 6 months: Protocol B | -0.35 (-0.777, 0.077) | 0.107 | -0.35 (-0.777, 0.077) | 0.107 |
Model 1: unadjusted; Model 2: adjusted for age, sex, BMI, and Stoller grade. β indicates the fixed-effect estimate; CI, confidence interval; P values are two-sided. Baseline (0 month) and Protocol A are reference categories