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Table 1 HBsAg status in early adult life by number of doses of HBV vaccine in infancy among GHIS participants with reliable original vaccination records still available

From: Efficacy and effectiveness of infant vaccination against chronic hepatitis B in the Gambia Hepatitis Intervention Study (1986–90) and in the nationwide immunisation program

 

HBsAg + (%)

95% CI

Odds ratio

HBV vaccine doses

0

59/475 (12.4%)

9.6 - 15.6

1

1 (partially vaccinated)

2/ 13 (15.4%)

1.9 - 45.4

1.28

2 (partially vaccinated)

2/ 10 (20.0%)

2.5 - 55.6

1.76

3 (fully vaccinated)

1/ 63 ( 1.6%)

0.4 - 8.5

0.11

4 (fully vaccinated)

1/192 ( 0.5%)

0.1 - 2.9

0.04

Total

65/753

 

-

  1. p (trend) <0.0001.