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Table 2 Anti-HBs antibody responses one month after HBV challenge by pre-vaccination status (ATP Cohort for immunogenicity)

From: Lasting immune memory against hepatitis B in children after primary immunization with 4 doses of DTPa-HBV-IPV/Hib in the first and 2nd year of life

     

Post challenge

     
  

≥ 3.3 mIU/ml

≥ 10 mIU/ml

≥ 100 mIU/ml

GMC

Pre-challenge status

N

n

%

95% CI

n

%

95% CI

n

%

95% CI

value

95% CI

<3.3 mIU/ml

21

19

90.5

[69.6; 98.8]

17

81.0

[58.1; 94.6]

11

52.4

[29.8; 74.3]

85.4

[24.7; 295.0]

≥ 3.3 mIU/ml

264

264

100

[98.6; 100]

264

100

[98.6; 100]

262

99.2

[97.3; 99.9]

12524.1

[9907.2; 15832.2]

<10 mIU/ml

42

40

95.2

[83.8; 99.4]

38

90.5

[77.4; 97.3]

31

73.8

[58.0; 86.1]

249.8

[116.9; 534.1]

≥ 10 mIU/ml

243

243

100

[98.5; 100]

243

100

[98.5; 100]

242

99.6

[97.7; 100]

16010.1

[12812.2; 20006.2]

<100 mIU/ml

151

149

98.7

[95.3; 99.8]

147

97.4

[93.4; 99.3]

139

92.1

[86.5; 95.8]

2119.3

[1475.8; 3043.4]

≥ 100 mIU/ml

134

134

100

[97.3; 100]

134

100

[97.3; 100]

134

100

[97.3; 100]

42433.2

[34084.1; 52827.5]

  1. N = number of subjects with available results. n/% = number/percentage of subjects with antibody concentrations above the specified cut-off. 95% CI = exact 95% confidence interval.