Dataset from Evaluate the Effect of Several Risk Factors That Are Likely to Influence the Immunogenicity of GSK Biologicals' Combined Hepatitis A & B Vaccine, vs Separately Administered Monovalent Hepatitis A and Hepatitis B Vaccines

The focus of this study is to evaluate how risk factors like age, gender, body mass index, smoking, alcohol consumption, etc. can influence immune response when subjects are vaccinated with GSK Biologicals' combined hepatitis A/hepatitis B vaccine or monovalent hepatitis A and B vaccines (from GSK Biologicals' or different manufacturers). The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.