SAGES system classification scheme
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vendhan Ramanujam M.B.B.S [2]
Overview
The Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) guidelines for clinical application of laparoscopic biliary tract surgery is graded and linked to evidence using the definitions in SAGES system of grading.
Levels of Evidence and Scales[1]
| Levels of evidence and scales for grading | Definition |
|---|---|
| Level I | Evidence from properly conducted randomized, controlled trials |
| Level II | Evidence from controlled trials without randomization or Cohort or case–control studies or Multiple time series, dramatic uncontrolled experiments |
| Level III | Descriptive case series, opinions of expert panels |
| Grade A | Based on high-level (level I or II), well-performed studies with uniform interpretation and conclusions by the expert panel |
| Grade B | Based on high-level, well-performed studies with varying interpretation and conclusions by the expert panel |
| Grade C | Based on lower-level evidence (level II or less) with inconsistent findings and/or varying interpretations or conclusions by the expert panel |
References
- ↑ 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
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