Compilation of meta-analyses showing prevalence of GI symptoms associated with COVID-19
| Variable | Parasa et al 2 | Cheung et al 3 | Tariq et al 4 | Mao et al 5 |
| Studies (n) | 29 | 60 | 78 | 35 |
| Patients (n) | 4805 | 4283 | 12 797 | 6686 |
| All GI symptoms | NA | 18% | NA | 15% |
| Diarrhoea | 7% | 13% | 12% | 9% |
| Nausea/vomiting | 5% | 10% | 9% | 6% |
| Abdominal pain | NA | 9% | 6% | 3% |
| Anorexia | NA | 27% | 22% | 21% |
| Stool sample positivity | 41 | 48.1% | NA | 54% |
GI, gastrointestinal.