[Investigation on varicella incidence of the children < or =14 years old in Shandong province in 2007].

Abstract

Objective: To investigate the variceilla incidence of children age < or =14 years old in Shandong province in 2007.

Method: All children aged < or =14 and the cases of varicella were investigated from one township of rural area and one township of urban area of Jinan, Yantai, Taian, Linyi, Dezhou and Liaocheng prefecture.

Result: 48877 children aged < or =14 were investigated. The incidence of varicella was 2841.83/100,100 The incidence of varicella was different between prefectures, and it was between 719.02/100,000 to 4394155/100,000. The peak age of incidence was 5 to 9 age group children.

Conclusion: The incidence of varicella was high in Shandong province, the incidence was difierent between areas and age groups.