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Chinese Journal of Clinicians(Electronic Edition) ›› 2022, Vol. 16 ›› Issue (10): 1012-1018. doi: 10.3877/cma.j.issn.1674-0785.2022.10.016

• Clinical Research • Previous Articles     Next Articles

Drug therapy pattern and population heterogeneity of patients with coronary heart disease based on cluster analysis

Jie Chen1, Feng Zhou2, Jinbo Liu3, Hongyu Wang3,()   

  1. 1. Center for Vascular Medicine, Peking University Shougang Hospital, Beijing 100144, China
    2. Department of Biostatistics, School of Public Health, Peking University, Beijing 100191, China
    3. Center for Vascular Medicine, Peking University Shougang Hospital, Beijing 100144, China; Vascular Health Research Center, Peking University Health Science Center, Beijing 100144, China; Key Laboratory of Molecular Cardiology, Ministry of Education, Beijing 100144, China
  • Received:2021-09-15 Online:2022-10-15 Published:2023-03-18
  • Contact: Hongyu Wang

Abstract:

Objective

To conduct a cluster analysis on the medication of 606 patients with CHD to explore the drug therapy mode and population heterogeneity of the patients.

Methods

This study enrolled 606 patients with CHD who were hospitalized at Vascular Department of Shougang Hospital from October 2016 to October 2017. The data of demographic characteristics, medication, carotid artery ultrasound, pulse wave conduction velocity measurement, blood pressure, and related biochemical examinations were retrospectively analyzed. The patients were divided into new categories by clustering medication status through k-means method. The demographic characteristics, vascular function, and blood pressure status of patients in different categories were compared.

Results

The 606 patients with CHD were divided into five categories (1-5), which included 136, 129, 110, 171, and 60 patients, respectively. The comparison of demographic characteristics, vascular function, and blood pressure showed that there were significant differences in age and complications among different categories. Patients treated with β blockers, antiplatelet drugs (aspirin and clopidogrel), nitrates, and statins had the lowest age (66.5 years [SD=10.6]), the shortest duration of CHD (61.0 years [SD=11.7]), the lowest prevalence of hypertension, and the least other complications. What's more, their cardiovascular function was good and their current recovery of blood pressure was better. Patients with CHD in categories 2 and 4 were second only to those in category 3 in age and duration of illness. Patients in category 2 had the highest prevalence of hypertension, while patients in category 5 had the highest prevalence of diabetes. Patients in category 1 did not receive any treatment, possibly due to patients' poor compliance or improper data collection.

Conclusion

Complications are an important factor in the selection of different drug treatment modes. Attention should be paid to the population heterogeneity presented by different drug treatment modes in clinical practice. This study provides ideas for the development of personalized treatment and precision medicine research.

Key words: Coronary heart disease, Population heterogeneity, Medication status, Blood pressure, Vascular function, Cluster analysis

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