Jos Kleijnen
joskleijnen.bsky.social
Jos Kleijnen
@joskleijnen.bsky.social
Emeritus Professor of Systematic Reviews in Health Care
Reposted by Jos Kleijnen
First proposition of a PhD thesis defended today: 'It's difficult to know whether a publication has been retracted.' bit.ly/44ar5a3
Many congratulations to Dr Caitlin Bakker for this important work!
@peerreviewcongress.bsky.social @joskleijnen.bsky.social @retractionwatch.com
June 5, 2025 at 10:27 AM
Did you know that in a true random sample (sample size 530) of all #systematicreview from 2021 (37,189) taken from www.ksrevidence.com, 30.8% of #systematicreviews failed to meet criterion ROBIS 4.6: Were biases in primary studies minimal or addressed in the synthesis?
KSR Evidence.
Kleijnen Systematic Reviews
www.ksrevidence.com
April 15, 2025 at 8:26 AM
Did you know that in a true random sample (sample size 530) of all systematic reviews from 2021 (37,189) taken from www.ksrevidence.com, 21.6% failed either ROBIS domain questions 4.3 or 4.4? That means that more than 1/5 of all meta-analyses were considered inappropriate!
KSR Evidence.
Kleijnen Systematic Reviews
www.ksrevidence.com
April 15, 2025 at 8:15 AM
Reposted by Jos Kleijnen
Risk of bias assessment of randomised controlled trials has become an essential step in the systematic review process.

A new tool allows users to assess risk of bias of RCTs included in systematic reviews in a user friendly way
www.bmj.com/content/388/...
March 25, 2025 at 6:24 PM
Reposted by Jos Kleijnen
Interview with Professor Jos Kleijnen on 40 Years of Systematic Reviews

He shares great lessons, stories, and wisdom, mentioning many people who shaped the #EvidenceBasedMedicine & #SystematicReviews

youtu.be/z88VyBb-9pQ
youtu.be
March 7, 2025 at 3:46 PM
Reposted by Jos Kleijnen
‼️ Exciting opportunities to join KSR ‼️

Are you passionate about research and making a tangible impact on healthcare?

We're going through a phase of substantial growth and development and are actively recruiting new talent in multiple roles.

Details here: www.systematic-reviews.com/careers/
February 28, 2025 at 1:34 PM
Episode 4. Carol Lefebvre - The First Librarian & Information Specialist in Cochrane Collaboration
www.youtube.com/watch?v=B94V...
YouTube
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February 20, 2025 at 5:01 PM
Reposted by Jos Kleijnen
See my interview with legendary Professor Gordon Guyatt on "Evidence-Based Medicine."

Unmissable 2.5 hours; You can also watch sections/chapters from the video description.

Subscribe to our YouTube channel to support future content: youtu.be/KtwqZJqHARM

#EBM #CoreGRADE #GRADE #CriticalAppraisal
youtu.be
January 27, 2025 at 8:12 PM
Reposted by Jos Kleijnen
PhD thesis on #SearchStrategies for #SystematicReviews by Melissan Rethlefsen can be downloaded at
bit.ly/3DGPMkP
PhD defense can be followed on 21 January 16:00 CET on YouTube at bit.ly/3W9qa6n
January 7, 2025 at 12:22 PM
Did you know that on LinkedIn there is a group about systematic reviews that has 13,588 members? www.linkedin.com/groups/944447/
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January 9, 2025 at 8:36 AM
Did you know there are currently 32,677 systematic reviews that have been fully appraised using the ROBIS checklist in ksrevidence.com?
January 9, 2025 at 8:33 AM