• Zhongguo Zhong Yao Za Zhi · Sep 2013

    [Analysis of actual effects of combining xiyanping injection with vitamin C injection in treatment of upper respiratory tract infection].

    • Zhi-Fei Wang, Jian Huo, and Yan-Ming Xie.
    • Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China. wzhftcm@163.com
    • Zhongguo Zhong Yao Za Zhi. 2013 Sep 1; 38 (18): 3161-5.

    ObjectiveTo investigate whether Xiyanping injection associated with vitamin C injection will improve the cure rate of upper respiratory tract infection compared to treatment with Xiyanping injection alone.MethodThe analysis was based on hospital information system (HIS) data. Patients were divided into two groups according to whether he or she accepted the addition of vitamin C to treatment with Xiyanping injection. We used the propensity score to balance confounding factors, and made confounding factors which cannot be balanced by the propensity score to act as covariate variables. Then Logistic regression was used to evaluate the effectiveness of the two groups.ResultThere was no significant difference between the 2 groups.ConclusionCompared with Xiyanping injection alone, using vitamin C in combination does not improve the treatment effectiveness of upper respiratory tract infection.

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