Timing of Hepatitis B Vaccination and Antibody Levels in Healthcare Workers
Author Information
Author(s): Elizabeth H. Lees, Murad M. Hassan, Breeher Laura E., Swift Melanie D.
Primary Institution: Mayo Clinic
Hypothesis
Does the timing of initial hepatitis B vaccination affect antibody immunity in healthcare personnel?
Conclusion
Healthcare personnel vaccinated as neonates are more likely to have negative or indeterminate hepatitis B antibodies compared to those vaccinated later.
Supporting Evidence
- Students vaccinated as neonates had a 74.3% rate of negative or indeterminate HBsAb.
- Logistic regression showed neonates had 13.8 times higher odds of negative or indeterminate HBsAb compared to adults.
- 88.6% of students with initial negative or indeterminate HBsAb responded positively to a challenge dose.
Takeaway
If you get a hepatitis B vaccine when you're a baby, you might not have enough protection later on, so doctors might need to give you another shot before you start working.
Methodology
Data were collected from medical students regarding their hepatitis B vaccination timing and subsequent antibody screening results.
Potential Biases
Potential bias due to exclusion of students without vaccine documentation or prior positive antibody proof.
Limitations
Small sample size and retrospective study design.
Participant Demographics
Participants included medical students with varying vaccination ages: neonates, pediatrics, and adults.
Statistical Information
P-Value
0.0007
Confidence Interval
(1.3, 141.8)
Statistical Significance
p=0.0007
Digital Object Identifier (DOI)
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