Abstract: AIM: To develope a symptom scale for evaluating efficacy of coronary angina pectoris and Qideficiency combined with stagnation of blood.METHODS: The symptom score is always related with its incidence rate (frequency), its importance (evaluated by experts)and its serious degree (light, moderate and serious) in a measuring scale, and a mathematical model was used to calculate the weight factor and its score for each symptom in the scale.In an example of coronary angina pectoris and Qi-deficiency combined with stagnation of blood trial was analyzed based on the scale, and the scale was evaluated with the reliability, the validity, and the responsibility to change.RESULTS: Six symptoms (chest pain, chest distress, palmus, short breath, debilitation, and cyanosis)were selected as indices, and their weight factors and grades were calculated in a score scale.Some evaluations demonstrated that the approach showed a better feasibility, uniformity, and responsibility to change.CONCLUSION: This scale can be used to evaluating the efficacy of coronary angina pectoris and Qi-deficiency combined with stagnation of blood in traditional Chinese medicine.

Key words: coronary artery disease, angina pectoris, Qi-deficiency combined with stagnation of blood, scale, reliability, validity, responsibility to change, weight factor