Factors associated with vaccination status among children age 12–23 months in Ethiopia, based on 2016 EDHS: logit based multinomial logistic regression analysis

Background: Childhood immunization is one of the most cost-effective prevention measures for children's mortality and morbidity, saving 2–3 million lives per year. Therefore, the aim of this study was to identify factors associated with vaccination status among children 12–23 months of age in Ethiopia.Method: A secondary data analysis was done based on the 2016 Ethiopian Demographic and Health Survey (EDHS). A total weighted sample of 1911 children age 12–23 months of age were included in the study. Logit based Multinomial logistic regression analysis was computed to distinguish factors associated with routine vaccination of children aged 12-23 months. P-value less than 0.05 was used to declare statistical significance of each independent variables, and adjusted Relative risk ratio (RRR) with 95% confidence interval were used to present the result and STATA 14 was utilized for data management and analysis. Result: Overall the prevalence of full vaccinated children was 35%, while 49% of children were partially vaccinated and 16% were non-vaccinated. In multinomial analysis, having focused ANC (at least four visits) contrasted to no ANC visits at all had 9.7 higher relative risk of being fully vaccinated than not vaccinated [RRR= 9.74, 95% CI=3.52-26.94], and 5 times higher relative risk of being partially vaccinated than not vaccinated [RRR=4.97, 95% CI=2.00-12.33]. Conclusion: The present study found that childhood full vaccination status was low compared with the World Health Organization targets. Frequency of ANC visit and visited by field worker were significantly associated both partially and full vaccination whereas, visited health facility last 12 months and wealth status were significantly associated with childhood full vaccination.