What question did this study set out to answer?

The aim is to evaluate how expanding the Community Health Worker programme affects child immunization rates in Nigerian cities.

March 12, 2026Open Access

Community Health Worker Programme Expansion and Its Impact on Child Immunization Rates in Nigerian Cities,

Puntos clave

The aim is to evaluate how expanding the Community Health Worker programme affects child immunization rates in Nigerian cities.
Surveys administered by Community Health Workers to parents of children at public health centers
Data collected over a two-year period
Logistic regression analysis to assess programme expansion impacts
Vaccination coverage increased from 60% to 72% after programme expansion
Odds ratio of 1.59 indicates higher immunization rates for children in CHW service areas
Targeted efforts suggested for urban slums and rural regions due to underserved populations

Resumen

This study examines the impact of expanding a Community Health Worker (CHW) programme on child immunization rates in Nigerian cities over two years. Data were collected through surveys administered by CHWs to parents/guardians of children attending public health centers. A logistic regression model was used to analyse the impact of programme expansion variables on immunization rates. The analysis revealed a significant increase in vaccination coverage from baseline (60%) to end-point (72%), with an odds ratio of 1. 59 (95% CI: 1. 43-1. 78) for children living within CHW service areas compared to those outside. The expanded CHW programme was effective in increasing child immunization rates, particularly among children residing near CHWs' intervention zones. Further expansion of the programme should target urban slums and rural underserved regions to ensure comprehensive coverage. Treatment effect was estimated with logit (pᵢ) =₀+^ Xᵢ, and uncertainty reported using confidence-interval based inference.

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