Abstract
Hepatitis B e antigen (HBeAg) status and serum hepatitis B virus (HBV) DNA levels are major factors affecting the prognosis of adult HBV carriers; however, the impact of viral load on long-term outcomes after spontaneous HBeAg seroconversion remains unclear. A total of 390 spontaneous HBeAg seroconverters with a long-term follow-up were enrolled. Serum HBV-DNA levels at 1 year after HBeAg seroconversion were determined, and their correlation with long-term adverse outcomes was explored. In a mean follow-up of 6.8 years, the average annual incidence rates were 4.4% and 1.9% for HBeAg-negative hepatitis and hepatitis flare, respectively. Compared with patients with HBV-DNA levels <200 IU/mL, the adjusted hazard ratios of HBeAg-negative hepatitis were 2.4 (95% confidence interval, 1.3-4.4), 3.6 (1.8-7.2), and 5.3 (2.8-10.0), respectively, for serum HBV-DNA level of 2000 -2 × 10(4), 2 × 10(4) -2 × 10(5), and ≥2 × 10(5) IU/mL. In addition, serum HBV-DNA levels were independently associated with HBeAg-negative hepatitis flare, which confirmed their impact on the immune active hepatitis after HBeAg seroconversion. HBeAg seroconversion may not always confer favorable outcomes. Serum HBV-DNA levels ≥2000 IU/mL at 1 year post HBeAg seroconversion correlate with increased risk of HBeAg-negative hepatitis and hepatitis flare.
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