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JOURNAL ARTICLE
MULTICENTER STUDY
OBSERVATIONAL STUDY
Serum HBeAg and HBV DNA levels are not always proportional and only high levels of HBeAg most likely correlate with high levels of HBV DNA: A community-based study.
Medicine (Baltimore) 2017 August
This study aimed to investigate the correlation between quantitative hepatitis B e antigen (HBeAg) and hepatitis B virus (HBV) DNA levels, and to determine whether semiquantitative measurement of HBeAg can indicate the extent of HBV replication in HBeAg-positive subjects in the immune tolerant phase.A cross-sectional, community-based survey was carried out in 12 communities of 2 counties in Zhejiang Province, China. A panel of 788 HBeAg-positive subjects was divided into 4 groups according to HBV DNA level.Groups I (n = 111), II (n = 91), III (n = 124), and IV (n = 462) had HBV DNA levels below 10 copies/mL (PCR undetectable), between 10 and 10 copies/mL (PCR detectable), between 10 and 2 × 10 copies/mL (hybridization detectable), and >2 × 10 copies/mL, respectively. The HBeAg level correlated well with the HBV DNA level (R = 0.658; P < .01) on a log scale. The average HBeAg level in group IV was significantly higher than those in the other 3 groups, and the best HBeAg cut-off value for differentiating group IV from the other 3 groups was 768 S/CO, with a sensitivity of 94.4% and specificity of 91.1%.Semiquantification of HBeAg could indicate a relative HBV DNA level in HBeAg-positive subjects in the immune tolerant phase.
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