Factors Affecting Immunization Status of Children Aged 12-23 Months in Ambo Woreda, West Shewa Zone of Oromia Regional State

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Addis Abeba Universty


Background: Vaccination is a proven immunization tool in preventing and eradicating communicable diseases. Despite increase in global immunization coverage, many children around the world especially in developing countries still left unvaccinated. In 2007, approximately 27 million infants world wide were unvaccinated against common childhood diseases and 2-3 million children die of vaccine preventable diseases. About 1 million children in Ethiopia were unvaccinated in 2007 and only 20% of the countries children are fully vaccinated in 2005. Objective: To assess immunization coverage and factors affecting immunization status of children aged 12-23 months. Method: A cross-sectional community based study was conducted from January to February, 2011 in Ambo Woreda in West Shewa Zone of Oromia regional state using modified WHO EPI cluster sampling method. A total of 536 children of aged between 12-23 months from 536 households were selected from 8 rural and 2 urban kebeles. Data were entered in to the computer using EPI-Info version 3.5.1 and analyzed by SPSS version 16 statistical software package. Results: About 96% of mothers heard about vaccination and vaccine preventable diseases and 79.5% knew correctly the benefit of immunization. About 36% of children were fully vaccinated by card plus recall, but only 27.7% were fully vaccinated by card alone and 23.7% children were unvaccinated. The study revealed that children are more likely to be vaccinated if the child is male (Adjusted Odds Ratio [AOR]=1.8: 95% CI: 1.1, 3.1), health institution born (AOR=2.3, 95% CI, mothers’ followed ANC (AOR=2.4 95% CI: 1.2, 5) and mothers’ knew the correct age at which begins (AOR=2.5 95% CI: 1.3, 4.7) and finishes (AOR=2.6 95% CI: 1.8, 5.7) the immunization. Similarly, children whose mothers attended ANC (AOR=2.1 95% CI: 1.03, 4), children born in the health facility (AOR=2.1, 95% CI: 1.3, 3.5), children whose mothers knew the age at which the vaccination begins (AOR= 2.4 95% CI: 1.5, 4) and completes (AOR=5.4, 95% CI: 2.6, 10) were significant predictors of full vaccination among children aged 12-23 months. Conclusion: There is low immunization coverage among children aged 12-23 months in the study woreda. Antenatal follow up, institutional delivery and knowledge of mothers about the age at which chid begins and finishes the vaccination are significant predictor of child immunization status. The Woreda should work to raise awareness of the community on immunization, antenatal care and institutional delivery utilizations and should increase ANC follow up and institutional delivery services which in turns increase the immunization coverage among children.



Factors Affecting Immunization Status of Children Aged 12-23 Months