Table 3 Anti-HBs seropositivity among children without booster doses.

From: Protective effect of vaccinating infants with a 5 µg recombinant yeast-derived hepatitis B vaccine and the need for a booster dose in China

Birth year

HBsAg( +) mother

HBsAg(–) mother

HBsAg(unknown) mother

Total

N

 + 

%

N

 + 

%

N

 + 

%

N

 + 

%

2012–2013

102

80

78.43

2265

1729

76.34

1200

874

72.83

3567

2683

75.22

2010–2011

100

70

70.00

2697

1661

61.59

1398

856

61.23

4195

2587

61.67

2008–2009

33

17

51.52

829

413

49.82

567

266

46.91

1429

696

48.71

2006–2007

21

11

52.38

692

311

44.94

413

168

40.68

1126

490

43.52

2004–2005

10

6

60.00

270

120

44.44

167

73

43.71

447

199

44.52

2002–2003

13

9

69.23

398

179

44.97

226

94

41.59

637

282

44.27

Total

279

193

69.18

7151

4413

61.71

3971

2331

58.70

11,401

6937

60.85