Community health centres (CHCs) play a crucial role in primary healthcare delivery in Senegal. However, their effectiveness and adoption rates vary significantly across different regions. Panel data were collected from to in four regions of Senegal. A mixed-methods approach was employed, combining quantitative survey data with qualitative interviews to assess the impact and usage patterns of CHCs. The analysis revealed a significant variation (34% - 67%) in CHC adoption rates across different geographical areas, indicating that factors such as socioeconomic status and infrastructure availability influence their effectiveness. This study provides insights into the methodological challenges and successes of using panel data for evaluating CHCs in Senegal. Future research should consider longitudinal studies to better understand long-term trends and implement targeted interventions based on identified factors affecting CHC adoption rates. Community health centres, Senegal, Panel data, Adoption rates, Mixed-methods approach Treatment effect was estimated with $\text{logit}(p_i)=\beta_0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.