| Baseline | 6 weeks | 3 months | Difference baseline to 6 weeks | Difference baseline to 3 months | Difference 6 weeks to 3 months |
---|---|---|---|---|---|---|
Number | 43 | 41 | 39 | 41 | 39 | 38 |
Mean severity score (95 % CI) | 5.0 (4.4 to 5.6) | 3.7 (3.1 to 4.4) | 3.7 (3.0 to 4.4) | −1.2 (-1.66 to -0.75) | −1.12 (-1.65 to – 0.58) | 0.07 (-0.37 to 0.5) |
Mean interference score (95 % CI) | 5.1 (4.4 to 5.9) | 4.0 (3.2 to 4.8) | 3.7 (3.0 to 4.5) | −1.10 (-1.62 to -0.59) | −1.17 (-1.69 to -0.65) | 0.02 (-0.34 to 0.39) |