Hi Jon,

Was your question triggered by this v. recent paper?

https://www.ncbi.nlm.nih.gov/pubmed/29864540

We discussed this in our information specialis'ts meeting this week at ScHARR! It does at least back up the idea that its very rare for a more streamlined approach to searching to lead to an opposite outcome for a review...

C

On Thu, 11 Oct 2018 at 06:36, Jon Brassey <[log in to unmask]> wrote:
Hi All,

I'm wondering how one could test the following so would welcome advice.

Question: Assuming we have a finite resource for evidence synthesis which is better 1 systematic review or, say, 5-10 rapid reviews?

Context: There is an opportunity cost associated with doing the labour intensive systematic reviews how do we know we are using this scarce resource (of evidence synthesis resource) optimally? In the studies of RR v SRs I have yet to see an example where a RR has got a 'wrong' answer (ie SR says the intervention is good while the RR says bad - so a reversal in conclusion) but there is sometimes variation in estimated effect size. This variation is frequently small  but sometimes it can move the effect from significant to non-significant or vice versa.

So, what method would you use to assess which gives most benefit for the limited amount of resource?

Best wishes

jon
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Jon Brassey
Director, Trip Database
Honorary Fellow at CEBM, University of Oxford
 

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Claire Beecroft
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