Application of propensity score method to analyze the effect of Maixuekang capsule on the treatment outcome of coronary heart disease

Objective To analyze the effect of Maixuekang Capsule on the treatment outcome of coronary heart disease (CHD) by propensity score. Methods Based on the electronic medical record database of 22 large-scale tertiary hospitals nationwide, this study matched the coronary heart disease patients using and not using Maixuekang capsule according to a certain standard (1∶1). After matching, there were 2 464 cases in the patients group (group A) and the patients group (group B). In the database, the recombination of " recovery" and " improvement" is defined as effective treatment, and " invalid" , " death" and " other" are combined as ineffective treatment population. The effectiveness of the two groups after the re combination is compared by propensity score. Results The results of χ2 test showed that the difference between the two groups was statistically significant (P 0, and there was statistical significance (P<0.01). Conclusions The therapeutic effect of Maixuekang capsule on coronary heart disease is higher than that of patients without the drug. Key words: Propensity score; Maixuekang capsule; Coronary disease; Electronic health records