[Forecasting strategies of hepatitis B vaccination based on decision tree model].

The strategies of hepatitis B vaccination was studied based on the decision tree model. The results showed that the young, especially newborn should be given the highest priority for vaccination and the best strategy to the neonate is vaccination without screening for HBsAg to their mothers. The results also showed that the population groups who can take positive benefits (BCR greater than 1) after being vaccinated can be enlarged if decreasing the costs of the vaccination and tests for hepatitis B virus markers, and increasing the protect rates and years of vaccination. It told us that we should not only pay attention to the study for the more effective and cheaper vaccine, but manage scientifically and use reasonably as well.