Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Distribution of cases of acute HBV infection and controls with corresponding odds ratios (OR) and 95% confidence intervals (CI)
The analyses included 120 cases and 3948 controls. Percentages were calculated after excluding individuals with missing information.
Odds ratios and P values were calculated by weighted analyses, taking into account oversampling of men and those aged 20–39 years among controls.
