GRADE system classification scheme: Difference between revisions

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==Overview==
==Overview==

Revision as of 21:44, 21 January 2014

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vendhan Ramanujam M.B.B.S [2]

Overview

Levels of Evidence[1]

Quality of evidence Definition
High quality (Grade A) Further research is very unlikely to change our confidence in the estimate of effect.
Moderate quality (Grade B) Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
Low quality (Grade C) Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
Very low quality (Grade D) Any estimate of effect is very uncertain.

References

  1. Overby, DW.; Apelgren, KN.; Richardson, W.; Fanelli, R.; Overby, DW.; Apelgren, KN.; Beghoff, KR.; Curcillo, P.; Awad, Z. (2010). "SAGES guidelines for the clinical application of laparoscopic biliary tract surgery". Surg Endosc. 24 (10): 2368–86. doi:10.1007/s00464-010-1268-7. PMID 20706739. Unknown parameter |month= ignored (help)