iiinova — where your digital self keeps evolving

Robin van Kessel

@robinvankessel.bsky.social

Hoffmann Fellow at LSE Health and World Economic Forum Assistant Professor at Maastricht University Associate Editor at npj Health Systems

Posts Replies Media

Robin van Kessel @robinvankessel.bsky.social · 27/04/2026

With Michael Anderson, @brianmcmillan.bsky.social, Marc Matthews, Paul Rust, Pauline Pearcy, Khurram Nasir, and @mossialos.bsky.social @lsehealthpolicy.bsky.social

000

Robin van Kessel @robinvankessel.bsky.social · 27/04/2026

Identical prompts, different outputs every time. Guideline prediction is stochastic. This means single-prompt evaluations fundamentally miss the real performance distribution. We need large-sample, distribution-aware frameworks before deploying LLMs in clinical settings.

100

Robin van Kessel @robinvankessel.bsky.social · 27/04/2026

Key findings: - GPT-4.1 omitted guidelines in up to 46% of outputs; DeepSeek-V3 in up to 97% - Up to 9% of GPT-4.1 outputs hallucinated guidelines - Patient location (UK vs USA) drove citation rates from 0% to 78% - UK diabetes cases hit ~20% hallucination rates

100

Robin van Kessel @robinvankessel.bsky.social · 27/04/2026

We asked GPT-4.1 and DeepSeek-V3 to process the same clinical cases hundreds of times. Across 12,197 outputs: rampant guideline omissions, hallucinated references, and wildly inconsistent results. New paper in @bmj.com #Health & #Care #Informatics: doi.org/10.1136/bmjh...

101

Reposted by Robin van Kessel

LSE Health Policy @lsehealthpolicy.bsky.social · 20/10/2025

AI & digital health can help healthcare - if we can evaluate their impact properly 💡 Join #LSEHealth & Roche on 27 Oct, 16:30 GMT Featuring LSE's @robinvankessel.bsky.social + George Wharton on a panel of experts 💬 REGISTER NOW: healthcaretransformers.com/healthcare-e...

021

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

The final print of the article that made this webinar possible is now officially released in the Bulletin of the @who.int: doi.org/10.2471/BLT....

000

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

The recording of this webinar is now available here: who.zoom.us/rec/componen... (Passcode: 00wG=X1S)

100

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

#Equity in #digitalhealth tools is so reliant on different forms of data. Data on how people access #healthservices, how people engage with the #online world in general, data used to develop new #medical technologies, data used to measure meaningful #healthoutcomes in different population segments.

100

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

#Data is abundant in the world, yet very little data is of good enough #quality to be valuable. We need better tools that help distinguish what datasets contain low quality versus high quality data.

100

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

The root of the #digitaldeterminantsofhealth lies, in part, in non-health sectors, such as the #energy and #technology sectors. Any #inequities in these sectors directly impacts the ways digital determinants can manifest.

100

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

In terms of introducing technologies into our #healthsystem, we are at a cross-roads: do we choose to focus on just implementing the newest technologies or the technologies that produce the highest value for our health systems?

100

Robin van Kessel @robinvankessel.bsky.social · 03/02/2025

Last week, I participated as panelist in a Decoding #Data and #DigitalHealth webinar by @who.int #Europe with #IlonaKickbusch, #MarelizeGorgens, @davidnovillo.bsky.social and @ryandossantos.bsky.social. We discussed wide-ranging impacts of the #digitaldeterminantsofhealth. Some key takeaways:

130

Reposted by Robin van Kessel

Stefan Buttigieg @stefanbuttigieg.com · 03/12/2024

It was a true delight to contribute to this! Well done @robinvankessel.bsky.social and many others for making this happen! 127 determinants with a digital impact! This report is definitely worth your time and effort to assimilate into your practice! iris.who.int/handle/10665... #DigitalHealth

164