TABLE 2.

Age groups of HBsAg-positive pregnant women and distribution by birth dates

Age groups (by years)	Age groups (by ages)	% n=2343
2000–1997	17–20	5.30
1996–1992	21–25	16.81
1991–1987	26–30	22.40
1986–1982	31–35	26.70
1981–1977	36–40	18.43
1976–1972	41–45	8.20
1971 and before	46+	2.20

HBsAg: Hepatitis B surface antigen.