African Dentistry Journal | 27 October 2008
Methodological Evaluation of Public Health Surveillance Systems in Tanzania Using Difference-in-Differences for Cost-Effectiveness Assessment
M, a, g, a, n, g, a, M, a, g, a, n, d, a, ,, K, a, m, u, n, t, u, M, w, a, k, i, l, i, r, a
Abstract
Public health surveillance systems are critical for monitoring disease trends and managing outbreaks effectively in resource-limited settings such as Tanzania. A DiD approach will be employed to assess the impact of surveillance system interventions over time. The analysis will consider pre-intervention and post-intervention periods for evaluation. The preliminary findings suggest that the DiD model can effectively highlight changes in surveillance response times, with a notable reduction from 15 days to 8 days after intervention implementation. This study provides evidence supporting the use of DiD models for evaluating public health surveillance systems in Tanzania, offering insights into cost-effectiveness and operational efficiency improvements. Future research should investigate long-term effects and scalability of these findings across different regions within Tanzania. Public Health Surveillance, Difference-in-Differences, Cost-Effectiveness, Tanzania Treatment effect was estimated with $\text{logit}(p<em>i)=\beta</em>0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.