Figure 4.

Change in FIQR total score (A) and FIQR pain item (B) from baseline to 6-weeks and 3-months. Error bars indicate SE. Δ, treatment effect (Active - Sham). Both treatment arms exhibit improvement from baseline to 6-weeks, however the group difference small and not significant. Between 6-weeks and 3-months, the active treatment arm continues to improve while the sham arm regresses or stays flat, leading to a significant group difference at the study endpoint.

Abbreviations: FIQR, Fibromyalgia Impact Questionnaire Revised; SE, standard error.