On which type of studies is the evidence pyramid primarily based?

The evidence pyramid is primarily based on systematic reviews because these types of studies synthesize and analyze multiple high-quality research findings to provide robust conclusions about a particular topic. Systematic reviews utilize a comprehensive search strategy to identify relevant studies, carefully assess their quality, and combine the evidence in a structured manner. This hierarchical approach places systematic reviews at the top of the evidence pyramid, reflecting their strength in providing reliable evidence for clinical practices and decisions.

By evaluating and aggregating findings from numerous studies, systematic reviews minimize bias and enhance the generalizability of results compared to individual studies, which might have limitations or specific contexts. This rigorous methodology helps ensure that healthcare professionals can base their decisions on a solid foundation of evidence, making systematic reviews an essential component of evidence-based practice in healthcare.