Table 2

Average effect of treatment on pain, disability and tenderness visual analogue scale scores

Treatment effect (sham–active)p Values
Effect95% CITreatmentTimeTreatment×time
Pain1.90.6 to 3.20.0070.40.5
Disability1.1−0.2 to
Tenderness1.40.2 to
  • p Values are from repeated-measures analysis of variance during follow-up (weeks 3, 7 and 13), using the average of the screening and baseline assessments as a covariate. p Values <0.05 are highlighted in bold.