Research Article

The Preventive Value of Acupoint Sensitization for Patients with Stable Angina Pectoris: A Randomized, Double-Blind, Positive-Controlled, Multicentre Trial

Figure 2

Change in the frequency of angina attacks during the study. HSG: high-sensitivity group; LSG: low-sensitivity group; ΔHSG: changes of the number of angina attacks from baseline to week 4 in the high-sensitivity group; and ΔLSG: changes of the number of angina attacks from baseline to week 4 in the low-sensitivity group.