[Clinical guidelines using the GRADE system (Grading of Recommendations Assessment, Development and Evaluation)]

Area of Science:

• Health Policy
• Clinical Practice Guidelines
• Evidence-Based Medicine

Background:

• Chile's Ministry of Health aims to enhance clinical practice guideline quality.
• The GRADE system (Grading of Recommendations, Assessment, Development and Evaluation) was adopted for evidence-based recommendations.

Purpose of the Study:

• To explain the GRADE system's methodology for developing evidence-based recommendations.
• To differentiate between strong and conditional recommendations generated by the GRADE system.

Main Methods:

• The GRADE system systematically evaluates evidence certainty across four dimensions: benefits vs. harms, evidence certainty, patient values/preferences, and resource use.
• The system translates evidence into strong or conditional recommendations.

Main Results:

• Strong recommendations indicate clear benefit over harm, applicable broadly.
• Conditional recommendations suggest a close balance or uncertainty, requiring individualized discussion.

Conclusions:

• Understanding GRADE's strong and conditional recommendations is crucial for health professionals.
• Effective implementation of evidence-based guidelines requires critical appraisal skills.