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. 2012 May 1;7(5):e35732. doi: 10.1371/journal.pone.0035732

Table 3. Comments illustrating editors’ attitudes towards systematic reviews.

Editor considered systematic reviews original research Editor did not consider systematic reviews original research
“Systematic reviews such as a Cochrane meta-analysis is an original research article.” “By definition, a “review” is not original research. If a systematic review yields new knowledge, it may be considered research in some fields of inquiry”
“… we do consider complex systematic reviews with protocols and the like research projects.” “…we are interested in original observations and new mechanisms of disease.”
“I consider them important scholarly work.” “We agree that a systematic review is rigorous scholarship and that a narrative review can be. But that is not the same as the “scholarship of discovery”
“Grey area, but we consider this original” “We are unsettled in our opinion. To some extent it depends on the manner in which the review was conducted: a strictly statistical analysis shows little intellectual input, is seldom of value and always says ‘more research is needed’.”
“…we DO consider meta-analyses as original research. However, a systematic review without a meta-analysis is considered a Review Article”