|JOURNAL OF CLINICAL EPIDEMIOLOGY
|Year Of Publishing
Untimely (taking too long) or resource intensive
Unpublished or "zombie" reviews (the file-drawer effect)
|Number of systematic reviews included
|Summary of Findings
|From 576 included Cochrane review protocols, 77.4% were published as a full review and 22.6% were still unpublished in February 2018. Median time from protocol publication to publication of the completed review was 2.78 years. Common reasons for nonpublication were: lack of time to work on the review; topic was out of date because of long Cochrane production process or Cochrane review group rejected the completed reviews and the authors published them elsewhere.
|Did the article find that the problem(s) led to qualitative changes in interpretation of the results?
|Are the methods of the article described in enough detail to replicate the study?