94 CHAPTER 4 Secondary outcomes Treatment effect The treatment effect was similar to previous studies. VAS was significantly lower at 8 (difference 45.0, 95% CI 37.0 – 52.9) and 32 weeks (difference 32.9, 95% CI (25.0 – 40.7) when compared to baseline (mean VAS 82.0, SD 14.0) (figure 2). Similarly, the DQ was significantly lower at 8 (difference 18.6%, 95% CI 12.3 – 24.9%) and 32 weeks (difference 10.1%, 95% CI 3.9 – 16.4%) when compared to baseline (mean DQ 26.7%, SD 20.1) (figure 2).
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