• 1. Department of Tuina and Pain, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P. R. China;
  • 2. iHealth Labs Inc, Shanghai 200235, P. R. China;
  • 3. Centre for Evidence-Based Medicine, Beijing University of Chinese Medicine, Beijing 100029, P. R. China;
  • 4. School of Pharmaceutical Science, Peking University, Beijing 100191, P. R. China;
  • 5. International Research Center for Medicinal Administration, Peking University, Beijing 100191, P. R. China;
LI Duoduo, Email: tarako@163.com
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Objective To combine specific examples and R Studio language code, to apply the Bayesian quantile regression method in the analysis of clinical medicine data, and show the advantages of Bayesian quantile regression method, so as to provide references for improving the accuracy of medical research. Methods  The clinical data of 250 patients with knee osteoarthritis from the capital special research on the application of clinical characteristics project were used. A Bayesian quantile regression model based on data set was constructed to explore the relationship between the level of serum IgG and the age of the patients. Results  The Monte Carlo algorithm converge can judge the efficiency of parameter estimation based on Gibbs sampling which was used to draw samples from the posterior distribution of parameters in Bayesian quantile regression. By generating the parameter into the regression formula, we can obtain the regression under different quantiles: Y1=−6.022 063 47+2.026 913 73X−0.015 077 69X2……Y5=24.610 542 414−0.395 059 497X+0.004 205 064X2. It can be found that the serum level of IgG was obviously increased with age. Conclusion  Bayesian quantile regression parameter estimation results are accurate and highly credible, and reliable parameter information can be obtained even under small sample conditions. It has great advantages in the research of clinical medicine data and has certain promotional value.

Citation: XUE Lijuan, SHEN Jie, YUAN Yi, GAN Yena, HAN Sheng, WANG Yuyan, LIU Zhifeng, ZHANG Mingyang, LI Duoduo. The application of Bayesian quantile regression in analysis of clinical medicine data and the R Studio practice. Chinese Journal of Evidence-Based Medicine, 2024, 24(1): 83-90. doi: 10.7507/1672-2531.202303009 Copy

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