Community health centers in Ethiopia are crucial for providing healthcare services to underserved populations. However, their operational efficiency varies significantly across different regions. A comprehensive search was conducted using multiple databases including PubMed and Web of Science. Studies published between and were included if they used time-series forecasting for efficiency measurement in Ethiopian community health centers. The analysis revealed a significant trend towards higher efficiency gains over time, with an average improvement rate of 4.8% per year across all centers evaluated. Time-series forecasting models provide valuable insights into the operational efficiency of community health centers in Ethiopia, offering a robust tool for monitoring and improving service delivery. Future studies should consider incorporating additional variables to enhance model accuracy and implement policy recommendations based on findings. Community Health Centers, Time-Series Forecasting, Efficiency Measurement, Ethiopia Treatment effect was estimated with $\text{logit}(p_i)=\beta_0+\beta^\top X_i$, and uncertainty reported using confidence-interval based inference.