Meta-regression analysis of clinical variables
| Variable | n | Coefficient | Statistics |
| HEV-RNA positivity | |||
| Age | 5 | −0.0138 | Q=0.53, p=0.4292 |
| Male gender | 5 | 0.9675 | Q=0.03, p=0.8582 |
| HEV-IgG positivity | |||
| Age | 4 | 0.1708 | Q=2.08, p=0.1490 |
| Male gender | 4 | 11.1997 | Q=1.29, p=0.2555 |
HEV, hepatitis E virus.