The GMC of diphtheria and tetanus antibody were 0.0997 IU/ml and 0.0674 IU/ml respectively, for both of them, the highest GMC was among the children aged 8-10 years old, the lowest one was among the adults aged 20-39 years old.

• 白喉和破伤风抗体几何平均浓度分别为0.；0997U/ml和0