Table 3.

Evaluation of curative effect on angina pectoris symptoms.

Evaluation of curative effect on angina pectoris symptoms
Significant effect	Disappearance of symptoms or almost disappearance of angina pectoris symptom efficacy index ≥70%.
Effective	The frequency, degree and duration of pain attacks were significantly reduced by 30% ≤ angina pectoris symptom index <70%.
Invalid	The symptoms are the same as those before treatment. 0 ≤angina pectoris symptom efficacy index <30%.
Aggravate	The frequency, degree and duration of pain attacks were aggravated, the score of angina pectoris was increased, and the curative effect index of angina pectoris symptoms was <0.

Description: angina symptom efficacy index = (pre-trial angina symptom score-post-trial angina symptom score)/pre-trial angina symptom score × 100%. The symptom score of angina pectoris is the sum of the scores in Table 2. Total effective rate = (significant effect + effective)/sample size × 100%.