From: Effect of herbal compounds on coronavirus; a systematic review and meta-analysis
Subgroup | Number of experiments | Heterogeneity (p value) | ES (95% CI) | p value |
---|---|---|---|---|
Chemical structure | ||||
 Phenolic compound | 7 | 84.7% (< 0.0001) | − 7.40 (− 10.81 to − 3.97) |  < 0.0001 |
 Lectin | 3 | 29.4% (< 0.24) | − 18.36 (− 26.60 to − 10.88) |  < 0.0001 |
 Extract of plant | 4 | 84.3% (< 0.0001) | − 21.83 (− 37.83 to − 5.84) | 0.007 |
 Alkaloid | 2 | 53.5% (0.143) | − 27.18 (− 48.84 to − 5.39) | 0.014 |
 Peptide | 4 | 23.1%(0.27) | − 10.235(− 14.73 to − 5.74) |  < 0.0001 |
Virus strain | ||||
 MERS-COV-2 | 3 | 70.8% (< 0.0001) | − 10.50 (− 18.91 to − 2.10) | 0.014 |
 HcoV | 8 | 79.1% (< 0.0001) | − 17.00 (− 23.36 to − 10.64) |  < 0.0001 |
 SARS-COV-2 | 9 | 80.3% (< 0.0001) | − 9.70 (− 14.23 to − 5.175) |  < 0.0001 |
Cell line | ||||
 Human | 10 | 79.5% (< 0.0001) | − 8.96 (− 12.56 to − 5.35) |  < 0.0001 |
 Monkey | 10 | 75.7% (< 0.0001) | − 15.22 (− 20.31 to − 10.13) |  < 0.0001 |