Factors which could influence the likelihood of any demonstrable effect of chronic HBV infection on obstetric outcome
| No. | Factors influencing obstetric effects of chronic HBV infection |
|---|---|
| 1. | Endemicity in the general population, or prevalence in the study population |
| 2. | Reason for diagnosis of maternal HBV infection, and whether HBsAg screening is a routine antenatal test |
| 3. | Presence of antiviral treatment before and/or during pregnancy |
| 4. | Genotype of HBV infection in the population |
| 5. | Age of acquiring the infection and immune phase of chronic HBV infection in the majority of the pregnant women, viral activity (HBV DNA level) |
| 6. | Presence of co-morbidities |
| 7. | Presence of chronic inflammation and/or hepatic inflammation |
| 8. | Presence of co-infections |