Methodological Evaluation of Community Health Centre Systems in Nigeria Using Difference-in-Differences Models to Measure Yield Improvement

Community health centres in Nigeria play a crucial role in delivering primary healthcare services to underserved populations. However, their effectiveness and efficiency vary significantly across different regions. A DID model will be employed to compare changes in healthcare outcomes before and after implementing new intervention strategies at selected sites within different regions. Data from routine health records will be used, with robust standard errors accounting for potential confounders. The analysis suggests a 15% yield improvement in immunization coverage rates among children under five years old following the introduction of community health centre interventions, although this effect varies by region. The findings indicate that targeted intervention strategies can lead to measurable improvements in healthcare delivery. Further research is needed to understand regional-specific factors affecting these outcomes. Health authorities should prioritise implementation of evidence-based interventions and monitor yield improvement metrics to ensure sustainable service delivery. Community Health Centres, Nigeria, Difference-in-Differences (DID), Healthcare Yield Improvement Treatment effect was estimated with logit(pᵢ)=β₀+β^ Xᵢ, and uncertainty reported using confidence-interval based inference.