an increasing trendp < .0001
The overall prevalence of anti-HBc was 7.0%, with an increasing trend with age, from 0% in 18–20 years old group to 17.9% in 51–60 years old group ( χ 2 = 46.7965, p < .0001).
The overall prevalence of anti-HBc was 7.0%, with an increasing trend with age, from 0% in 18–20 years old group to 17.9% in 51–60 years old group ( χ 2 = 46.7965, p < .0001).