Step 4: Determine balance between benefits and harms Estimate magnitude of benefit Estimate magnitude of harm Estimate magnitude of net benefit (substantial, moderate, small, zero/negative) May use outcomes tables (tally sheet)
11
Step 5: Grade the Recommendation
Level of Overall Evidence of Effectiveness Good Fair Poor
Estimate of Net Benefit (Benefit Minus Harms) Substantial Moderate Small A B B B I – Insufficient Evidence
C C
Zero/ Negative D D
Khóa đào tạo “EBM, cách đọc bài báo và cách tìm tài liệu nghiên cứu” lần thứ hai | Trang 20