Objective This study is to estimate the routine immunization coverage of Jiangsu province, and to analyze the impact factors for estimated routine immunization coverage. Methods The reported routine coverage data in 2007-2009 were collected through China immunization information system （CIIS）. The estimated coverage method used in this study, which was recommended by the World Health Organization （WHO）. Results The percentage of county reported routine immunization was 100% in 2007-2009; the targeted population of routine immunization reported from CIIS were 0.8265-0.9221 million, the vaccinated population were between 0.7991-0.9114 million; reported routine immunization coverage of each vaccine dose varied from 98.18%-99.90%, and estimated coverage varied from 85.49%- 99.87%. Conclusion The reported and estimated routine immunization coverage were on a high level. However, there is still some gap between the reported data and the estimated data in some areas. It is recognized that the birth cohort from the WHO recommended method should be used carefully, and the adjusted index is suggested from 0.7-0.8 in eastern China.
Chinese Journal of Vaccines and Immunization
Reported routine immunization coverage
Estimated routine immunization coverage.