The Cochrane Editorial Unit is running a survey on how to improve both the Cochrane Library and individual reviews at the moment see http://www.thecochranelibrary.com/details/editorial/1479641/Strategic-review-of-The-Cochrane-Library.html
This would be a good opportunity to raise any issue like this directly with Cochrane
Best wishes,
Hugh
-----Original Message-----
From: Evidence based health (EBH) on behalf of Evan Mayo-Wilson
Sent: Sun 04/03/2012 20:02
To: [log in to unmask]
Subject: Re: R: Clinical utility of the Cochrane reviews
GRADE summary of findings tables can include absolute post-intervention
rates for intervention and comparison groups with varying levels of
baseline risk. We did one like this last year (
http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD008524.pub2/tables)
and there's information about GRADE/GRADEpro on the Cochrane website (
http://ims.cochrane.org/gradepro).
Of course, *how* you estimate the baseline risk for any individual is
beyond the scope of most intervention reviews, but some reviews will also
consider these issues in background and discussion sections.
Best wishes,
Evan
Evan Mayo-Wilson, MSc, MPA, DPhil
Centre for Outcomes Research and Effectiveness
Research Department of Clinical, Educational & Health Psychology
University College London
1-19 Torrington Place
London WC1E 7HB
mobile: +44 (0) 7932 116535
[log in to unmask]
On 4 March 2012 19:23, Paul Elias <[log in to unmask]> wrote:
> In some sense you may be on to something here Nino et al...but the summary
> odds ratio generated by the meta analysis is a summary of several (many)
> odds ratios...so thats the post intervention rate...in summary form meant
> to increase power...this is the aim of a SR meta analysis...to increase the
> power in detecting a difference/effect if one does in fact exist...yet
> maybe there can be a means to generate a pre baseline measure in similar
> fashion as to how the post is derived...with necessary weighting by sample
> sizes etc.
>
> * *
> **
>
>
>
> Best,
>
> Paul E. Alexander
> * *
>
>
>
> --- On *Sun, 3/4/12, Nino Cartabellotta <[log in to unmask]>* wrote:
>
>
> From: Nino Cartabellotta <[log in to unmask]>
> Subject: R: Clinical utility of the Cochrane reviews
> To: [log in to unmask]
> Received: Sunday, March 4, 2012, 7:00 PM
>
>
> Dear Piersante,
> a big question... without answers
> Nino
>
> -----Messaggio originale-----
> Da: Evidence based health (EBH) [mailto:
> [log in to unmask]<[log in to unmask]" target="_blank">http:[log in to unmask]>]
> Per conto di Piersante Sestini
> Inviato: sabato 3 marzo 2012 23:38
> A: [log in to unmask]<[log in to unmask]" target="_blank">http:[log in to unmask]>
> Oggetto: Clinical utility of the Cochrane reviews
>
> I find Cochrane reviews less and less useful in addressing clinical
> problems in practice.
> The point is that they insist in providing just odds ratios, which on one
> side are of limited value to a literate reader (me) without knowing the
> baseline risk, and are of no value at all for the other side of the problem
> (the patient).
> Why in the hell don't Cochrane review give properly the baseline and
> post-intervention rate, which is what we all agree is the more reasonable
> data on which one can make an informed choice?
>
> Is there a reason to it and/or a way to change this state of things?
>
> thanks,
> Piersante Sestini
>
>
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