Fig. 4.

Repeated measure ANOVA test demonstrates that pain score decreases with time up to long-term follow-up (mean 24 months after ESWT) (time effect, p<0.001) without significant group-time interaction (p=0.641 for interaction). The pain scores at short-term follow-up (one week after completion of all ESWT sessions) and long-term follow-up do not show significant difference between the study groups. ESWT, extracorporeal shock wave therapy; NRS, numeric rating scale; Apparent-US, apparent ultrasonographic abnormal group; Uncertain-US, uncertain ultrasonographic group.