At EBHC in Oxford they encourage us to look at a few initial questions which can be rapidly ascertained by going to the results section in regards to study quality and if it will fit our potential population PICO Population/intervention/comparator/outcome. We can then quickly grade the materials and reject or accept for deeper analysis. The CASP website could be helpful for this http://www.casp-uk.net/ I am just learning so there may be others that can be more helpful
Building Brain Potential
From: Evidence based health (EBH) [mailto:[log in to unmask]] On Behalf Of Baldassarre, Fulvia
Sent: 26 October 2011 02:03 PM
To: [log in to unmask]
Subject: Where and when there is no evidence
Does anyone know if for a guideline topic there is a way to determine whether it is worth embarking on a systematic review at all, or whether it is better to directly turn to consensus of experts?
As an example, at the Program in Evidence-Based Care (PEBC) we did several systematic reviews that ended up to be empty: although the experts thought there might have been something out there, at the end of the systematic reviews we could not find enough evidence at all to base our recommendations. This happened on a safety topic where incidents are rare but fatal, and out there is just case reports. Several (8.7%) Cochrane reviews end up empty too, and I was wondering if there is a quick way to determine what to expect before spending the time and energy to do the review. I know about studies that looked at horizon estimates, but that is a slightly different thing, and horizon estimates are resource intensive too. I explored the Cochrane empty review site http://empty-reviews.org/ but I could not see an answer to my question; although they mention that we need guidance in anticipating empty reviews, they don't expand on this. Perhaps someone has done work on this already...
Fulvia Baldassarre, RN, MSc.
Program in Evidence-based Care, Cancer Care Ontario
McMaster University, Juravinski Hospital site
G Wing, 2nd Floor, Rm 220
711 Concession Street,
Hamilton, ON L8V 1C3
Telephone: 905- 527-4322 extension 42834
e-mail: [log in to unmask]