Repeated-measures analysis of primary outcome: Brief Pain Inventory (BPI) pain scores. Reported P values are overall model results summarizing any potential change across four time points throughout the study. Individual estimated change from baseline scores specify changes in scores from baseline to any designated study visit on a scale from 0 to 10, with 0 indicating least possible pain or interference.
Abrams et al. BMC Complementary and Alternative Medicine 2013 13:146 doi:10.1186/1472-6882-13-146