From: The Systematic Guideline Review: Method, rationale, and test on chronic heart failure
Publication Type | No. of Cited | No. of Excluded | Reason for Preclusion |
---|---|---|---|
Systematic Reviews/Meta-analyses (SR) | 36 | 13 | Results outdated by more recent SR |
 |  | 3 | SR reported surrogate outcomes where clinical outcomes were available |
 |  | 2 | SR did not contain target population |
 |  | 4 | SR was out of the scope of the target guideline |
Randomized Controlled Trials (RCT) | 170 | 132 | RCT included in re-evaluated SR |
 |  | 8 | Results on surrogate outcomes where clinical outcomes were available |
 |  | 12 | Set aside for further comprehensive research |
 |  | 12 | RCT was out of the scope of the target guideline |
Traditional Reviews, Editorials | 33 | 33 | Provided no systematic evidence |
Miscellaneous Clinical Studies | 70 | 69 | Study design and/or sample size N<50 were not expected to provide strong evidence; further search for high-level evidence was seen to be more effective than re-appraisal |
Total | 309 | 288 | Â |