Purpose: To evaluate the potential association of abnormal cord coiling with adverse pregnancy outcomes. Materials and methods: We used the Medline (1966–2018), Scopus (2004–2018), Clinicaltrials.gov
*HBsAg: hepatitis B surface antigen; HBeAg: hepatitis B e antigen; BMI:Body mass index.HBV-DNA(+) indicated hepatitis B DNA>2000 U/ml; IQR: interquartile range; ALT, alanine aminotransferase; AST, asp