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运用决策树模型及成本－效益分析方法。对济南市新生儿乙型肝炎疫苗免疫预防的接种策略及经济效益进行了决策分析，结果显示，不同剂量的三种接种策略均可获得正效益，其效益一成本比值为４２．４１～４８．０１，从卫生经济学角度看，三种接种策略均是可行的，经决策分析认为，在疫苗紧张的情况下，应将重点放在母婴阻断上，若疫苗供应允许，则应对全体新生儿进行免疫。另外，敏感性分析结果显示，济南市实施新生儿乙型肝炎疫苗免疫预防其经济效益是非常显著的，也是极其稳定的。
Apply Decision Tree Model and Cost-Benefit Analysis Method. The vaccination strategy and economic benefit of Hepatitis B vaccine immunization in Jinan were analyzed. The results showed that all the three vaccination strategies with different dose could get positive benefit, and the benefit-cost ratio was 42.41 ~ 48. 01, from the perspective of health economics, three vaccination strategies are feasible, the decision analysis that in the case of vaccine stress, emphasis should be placed on the mother and child block, if the vaccine is allowed, you should deal with all freshmen Children immunized. In addition, the results of sensitivity analysis showed that the economic benefits of preventing and curing hepatitis B vaccine in Jinan were very significant and extremely stable.