Title : High prevalence of zero-dose children in underserved and special setting populations in ethiopia using a generalize estimating equation and concentration index analysis
Abstract:
Background: The WHO/UNICEF estimates that over 18 million children in low- and middle-income countries, especially in Africa and South-East Asia, are not being vaccinated, with Ethiopia being one of the top four countries contributing to this issue.
Objective: To estimate the prevalence of zero-dose children and associated factors in underserved populations of Ethiopia.
Methods: A cross sectional survey conducted in June 2022 analyzed vaccine coverage among mothers of children aged 12-35 months using the CommCare application system and Stata version 17. Weighted analysis estimated vaccination coverage, and a model determined predictors of zero-dose children. Statistically significant findings were based on an adjusted odds ratio, 95% confidence interval, and a p-value of 0.05 or less.
Results: The overall prevalence of zero-dose children in the study settings was 33.7% (95% CI: 34.9%, 75.7%). Developing and pastoralist regions, internally displaced peoples, newly formed regions, and conflict-affected areas had the highest prevalence of zero-dose children. Wealth index (poorest [AOR=2.78; 95% CI: 1.70, 4.53], poorer [AOR=1.96; 95% CI: 1.02, 3.77]), single marital status [AOR=2.4; 95% CI: 1.7, 3.3], and maternal age (15-24 years) [AOR=1.2; 95% CI: 1.1, 1.3] were identified determinant factors of zero-dose children in the study settings. Additional factors included fewer than four ANC visits [AOR=1.3; 95% CI: 1.2, 1.4], not receiving PNC services [AOR=2.1; 95% CI: 1.5, 3.0], unavailability of health facilities within the village [AOR=3.7; 95% CI: 2.6, 5.4], women-headed household [AOR=1.3; 95% CI:1.02, 1.7], low gender empowerment [AOR=1.6; 95% CI: 1.3, 2.1], and medium gender empowerment [AOR=1.7; 95% CI: 1.2, 2.5].
Conclusion: In study settings, high prevalence of zero-dose children due to factors like poor economic status, disempowerment of women, being unmarried, young maternal age, and underutilization of antenatal/postnatal services. Recommended to target tailored integrated and context-specific service delivery approach, including extended immunization session hours in city administrations.