Reduced SARS-CoV-2 infection risk is associated with the use of Seven-Flavor Herb Tea: A multi-center observational study in Shanghai, China

doi:10.1016/j.joim.2023.06.005

Journal of Integrative Medicine ›› 2023, Vol. 21 ›› Issue (4): 369-376.doi: 10.1016/j.joim.2023.06.005

• Original Chinical Research • Previous Articles Next Articles

Reduced SARS-CoV-2 infection risk is associated with the use of Seven-Flavor Herb Tea: A multi-center observational study in Shanghai, China

Shun-xian Zhang^{a 1}, Xiao-xu Chen^{b 1}, Yong Zheng^c, Bing-hua Cai^d, Wei Shi^e, Ming Ru^f, Hui Li^g, Dan-dan Zhang^h, Yu Tian^b, Yue-lai Chenⁱ

a. Clinical Research Center, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
b. Medical Affairs Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
c. Medical Affairs Department of Minhang District Health Committee, Shanghai 201199, China
d. Medical Affairs Department of Fengxian District Health Committee, Shanghai 201499, China
e. Medical Affairs Department of Jinshan District Health Committee, Shanghai 200540, China
f. Medical Affairs Department of Xuhui District Health Committee, Shanghai 200030, China
g. Medical Affairs Department of Changning District Health Committee, Shanghai 200050, China
h. Medical Affairs Department, Jinshan TCM-Integrated Hospital, Shanghai 201501, China
i. Sleep Medicine Center, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China

Received:2022-11-08 Accepted:2023-05-04 Online:2023-07-17 Published:2023-07-17
Contact: Yu Tian; Yue-lai Chen E-mail:tyrain2000@sina.com; chenyuelai@163.com

Abstract

Objective
Omicron, a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant, is responsible for numerous infections in China. This study investigates the association between the use of Seven-Flavor Herb Tea (SFHT) and the risk of SARS-CoV-2 infection to develop precise and differentiated strategies for control of the coronavirus disease 2019 (COVID-19).

Methods
This case-control study was conducted at shelter hospitals and quarantine hotels in China. A total of 5348 laboratory-confirmed COVID-19 patients were enrolled between April 1 and May 31, 2022, while 2190 uninfected individuals served as healthy controls. Structured questionnaires were used to collect data on demographics, underlying diseases, vaccination status, and use of SFHT. Patients were propensity-score-matched using 1:1 nearest-neighbor matching of the logit of the propensity score. Subsequently, a conditional logistic regression model was used for data analysis.

Results
Overall, 7538 eligible subjects were recruited, with an average age of [45.54 ± 16.94] years. The age of COVID-19 patients was significantly higher than that of uninfected individuals ([48.25 ± 17.48] years vs [38.92 ± 13.41] years; t = 22.437, P < 0.001). A total of 2190 COVID-19 cases were matched with uninfected individuals at a 1:1 ratio. The use of SFHT (odds ratio = 0.753, 95% confidence interval: 0.692, 0.820) was associated with a lower risk of SARS-CoV-2 infection compared to untreated individuals.

Conclusion
Our findings suggest that taking SFHT reduces the risk of SARS-CoV-2 infection. This is a useful study in the larger picture of COVID-19 management, but data from large-sample multi-center, randomized clinical trial are warranted to confirm the finding.

Key words: COVID-19, SARS-CoV-2, Seven-Flavor Herb Tea

Shun-xian Zhang, Xiao-xu Chen, Yong Zheng, Bing-hua Cai, Wei Shi, Ming Ru, Hui Li, Dan-dan Zhang, Yu Tian, Yue-lai Chen. Reduced SARS-CoV-2 infection risk is associated with the use of Seven-Flavor Herb Tea: A multi-center observational study in Shanghai, China. Journal of Integrative Medicine, 2023, 21(4): 369-376.

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URL: http://www.jcimjournal.com/EN/10.1016/j.joim.2023.06.005

http://www.jcimjournal.com/EN/Y2023/V21/I4/369

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Reduced SARS-CoV-2 infection risk is associated with the use of Seven-Flavor Herb Tea: A multi-center observational study in Shanghai, China

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