Fig. 2From: Safety, tolerability and efficacy of intra-articular Progenza in knee osteoarthritis: a randomized double-blind placebo-controlled single ascending dose studya Change from baseline VAS pain scores (data are presented as the least squares mean estimates with 95% confidence intervals and within group p values) and b proportion of pain responders (responders with an improvmeent of at least 30% from baseline VAS score). VAS, visual analogue scaleBack to article page