Methodological Evaluation of Community Health Centre Systems in Tanzania Using Difference-in-Differences Model to Assess System Reliability

Community health centres in Tanzania are pivotal for providing essential healthcare services to underserved populations. However, their reliability and effectiveness have not been rigorously evaluated. A DiD regression model was employed to evaluate changes in service delivery outcomes before and after the implementation of new healthcare policies. Data on patient visits, staff availability, and resource allocation were sourced from Tanzanian health records. The analysis revealed a statistically significant improvement (p < 0.05) in patient consultation rates post-policy implementation, indicating an enhanced reliability of community health centre systems. The DiD model effectively captured the impact of policy changes on healthcare service delivery, providing empirical evidence for system improvements and resource allocation strategies. Policy makers should prioritise ongoing training programmes for staff to maintain high service standards. Additionally, regular assessments are recommended to ensure sustainability and efficiency in community health centre operations. Community Health Centres, DiD Model, Policy Impact, Healthcare Delivery Treatment effect was estimated with logit(pᵢ)=β₀+β^ Xᵢ, and uncertainty reported using confidence-interval based inference.