The quality of evidence is commonly assessed using frameworks like:
1. GRADE: The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system evaluates the quality of evidence and strength of recommendations. It categorizes evidence into four levels: high, moderate, low, and very low. 2. STROBE: The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines provide a checklist for reporting observational studies to improve transparency and quality.