Fig. 3

Changes in NRS scores: (a) clinically meaningful (≥30%) and (b) highly meaningful (≥50%). a clinically meaningful (≥30%) and (b) highly meaningful (≥50%)were defined based on the reduction of pain intensity from baseline. The proportion of clinically meaningful (≥30%) was significantly higher in the GA group than in the control group (a, P = 0.033 chi-square test). The proportion of highly meaningful (≥50%) was significantly higher in the GA group than in the control group (b, P = 0.038, chi-square test). This figure shows the proportion of patients (%) in whom a clinically meaningful was observed