Arnaud Chiolero MD PhD
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swissepi.bsky.social
Arnaud Chiolero MD PhD
@swissepi.bsky.social
160 followers 180 following 54 posts
Population Health Scientist
Epidemiologist | Head of the Population Health Laboratory https://projects.unifr.ch/pophealthlab/ | 🇨🇭 UNIFR & 🇨🇦 McGill #lifecourse #epidemiology #surveillance #monitoring #cancer
Posts Replies Media Videos
Reposted by Arnaud Chiolero MD PhD
ourworldindata.org
🔍 Introducing our new, more powerful search!

→ ourworldindata.org/search

With such a rich publication—nearly 14,000 charts and 100s of articles on 120+ topics—it can be hard to find what matters to you.

Now, finding what you’re looking for, or discovering something new, has never been easier.
Image of new Our World in Data search page
November 6, 2025 at 10:10 AM
swissepi.bsky.social
Fall 2025 in Switzerland🇨🇭 waiting for Christmas 🎅
October 25, 2025 at 4:43 PM
Reposted by Arnaud Chiolero MD PhD
pwgtennant.bsky.social
Had a fantastic few days in Oslo with @robertwplatt.bsky.social, @je-schwarze.bsky.social, and colleagues (plus @jdwilko.bsky.social online!) discussing how to do better reproductive research!
September 24, 2025 at 3:04 PM
Reposted by Arnaud Chiolero MD PhD
drtomfrieden.bsky.social
Pre-order your copy here:
The Formula for Better Health
In The Formula for Better Health, Tom Frieden—named “the most influential leader in American public health since C. Everett Koop” by former...
mitpress.mit.edu
September 24, 2025 at 4:08 PM
Reposted by Arnaud Chiolero MD PhD
purescience.news
Science is under siege from weaponised disinformation – posing a threat to human civilisation | Michael Mann and Peter Hotez #Science #Culture #Disinformation #ScienceCommunication #PublicTrustInScience
Science is under siege from weaponised disinformation – posing a threat to human civilisation | Michael Mann and Peter Hotez
From Covid misinformation to climate denialism, understanding the divergent paths of Australia and the US can help us fight the powerful forces that threaten our world As two scientists who lived through...
purescience.news
September 9, 2025 at 9:45 AM
swissepi.bsky.social
Kennedy is wrong, for sure, but how to resist⁉️ "To uphold a truly evidence-based public health, we must re-enchant and reinforce independent scientific institutions capable of generating valid expertise grounded in population health sciences." #PopHealthLab
www.bmj.com/content/390/...
Reinforce Population Health Sciences for Evidence-Based Public Health
www.bmj.com
September 8, 2025 at 8:27 AM
swissepi.bsky.social
www.the-scientist.com/an-nih-revie...
An NIH Reviewer Offers Grant-Writing Tips
Although securing grants in a competitive environment is challenging, researchers can ensure they put their best foot forward by following a few simple tips.
www.the-scientist.com
August 17, 2025 at 3:03 PM
Reposted by Arnaud Chiolero MD PhD
gilesyb.bsky.social
Sitting here bleary after another poor night's sleep, disinclined to engage in a day of cognitive effort, this chart from @jburnmurdoch.ft.com really strikes home on.ft.com/4eFZG4l
Shows death rates in US and eu cities by temperature, air con being the decisive factor
July 11, 2025 at 6:09 AM
Reposted by Arnaud Chiolero MD PhD
ourworldindata.org
The world is awful. The world is much better. The world can be much better.

All three statements are true at the same time. Understanding this is key to solving big global problems.

We believe data & research can help us understand both the problems we face & the progress that’s possible. 🧵
A chart in three parts showing data on child mortality to make the points that "The world is awful. The world is much better. The world can be much better. All three statements are true at the same time."
December 10, 2024 at 1:05 PM
Reposted by Arnaud Chiolero MD PhD
ourworldindata.org
✍️ New article: “$3 a day: A new poverty line has shifted the World Bank’s data on extreme poverty. What changed, and why?” 🧵
A line chart showing the global number of people living in extreme poverty. Extreme poverty is defined as living below the International Poverty Line (IPL), which is $2.15 per day in 2017 prices (shown as a red line on the chart) and $3 per day in 2021 prices (shown as a blue line). 125 million people who would not have been counted as extremely poor before June 2025 (when the IPL was raised to $3 per day) are now included. This data is adjusted for inflation and for differences in living costs between countries. The data source is the World Bank (2024 and 2025). The chart is CC BY Our World in Data.
August 11, 2025 at 3:52 PM
swissepi.bsky.social
Near #Lausanne 🇨🇭 August 2025
August 12, 2025 at 5:26 AM
Reposted by Arnaud Chiolero MD PhD
charlespiroth.bsky.social
The Thinker. Los Angeles, 1930

Hiromu Kira
August 6, 2025 at 7:44 PM
swissepi.bsky.social
"Pamuk gives a compelling philosophical argument for increasing the institutions that are at the nexus of citizen civil society and the expert-led decision-making processes of government"
oxfordpoliticalreview.com/2024/03/24/z...
Zeynep Pamuk on Politics and Expertise: ‘It’s not just a matter of fixing the communication and educating the people’ | ayzwang | Oxford Political Review
Antoine Levie speaks to Zeynep Pamuk, Associate Professor in Contemporary Political Theory at Oxford University and Professorial Fellow at Nuffield College, about her recent book ‘Politics and Experti...
oxfordpoliticalreview.com
August 8, 2025 at 8:43 PM
swissepi.bsky.social
"Continuously expanding disease criteria can reduce underdiagnosis and increase appropriate care, but often risk overdiagnosis, resulting in overtreatment and low-value care, ultimately threatening health care sustainability." #PopHealthLab
jamanetwork.com/journals/jam...
The Impact of Definitions of Disease on Overdiagnosis
This Viewpoint discusses the global challenge of defining diseases and the need to balance broader access to medical treatment with avoidance of harmful medicaliziation and inefficient resource use.
jamanetwork.com
August 5, 2025 at 6:31 AM
Reposted by Arnaud Chiolero MD PhD
jama.com
US children's health has worsened from 2007 to 2023 across various indicators, including mortality, chronic conditions, and mental health.

ja.ma/4lZnRxG #MedSky #PedSky
Figure 1. All-Cause Mortality Rates per 100 000 in the US vs OECD18 for <1-Year-Old Infants and 1- to 19-Year-Old Individuals, 2007-2022
August 2, 2025 at 10:00 AM
Reposted by Arnaud Chiolero MD PhD
pwgtennant.bsky.social
This will be:

* the first European Congress of Epidemiology since Cork, Ireland 2019

* the 70th conference of the Society for Social Medicine & Population Health

* the 70th anniversary of the first meeting of the International Epidemiological Association

So a real celebration of Epi in Europe!
July 24, 2025 at 10:31 AM
Reposted by Arnaud Chiolero MD PhD
pwgtennant.bsky.social
SAVE THE DATE: The 2026 IEA European Congress of Epidemiology and 70th @socsocmed.bsky.social Annual Conference will take place in London, UK on 8th-11th September 2026!

#EpiSky #EuroEpi2026
July 24, 2025 at 10:18 AM
swissepi.bsky.social
#epidemiology Save the date 💪😘 @pwgtennant.bsky.social @societyforepi.bsky.social @robertwplatt.bsky.social @harvardepi.bsky.social @yalesph.bsky.social
July 24, 2025 at 4:22 PM
Reposted by Arnaud Chiolero MD PhD
pwgtennant.bsky.social
PLEASE SHARE THROUGH YOUR NETWORKS!!! ⬆️

@mendelrandom.bsky.social @swissepi.bsky.social @christinadahm.bsky.social @ideberitlange.bsky.social @jlrohmann.bsky.social @jeremylabrecque.bsky.social @nataliaortega.bsky.social @statsepi.bsky.social @janetcade.bsky.social @robertwplatt.bsky.social
July 24, 2025 at 10:31 AM
swissepi.bsky.social
Bordeaux Mai 2025
May 12, 2025 at 4:57 AM
swissepi.bsky.social
Risk prediction is made at a group level - not at an individual level 🤔 It seems evident but the confusion is pervasive 😱 and stems from the conflation between risk and disease #PopHealthLab
www.bmj.com/content/389/...
Confusion between population risk prediction and individual disease
Riley and colleagues discuss the importance of presenting the uncertainty around risk estimates provided by clinical prediction models.1 They describe how uncertainty and bias can be caused by poor me...
www.bmj.com
May 2, 2025 at 3:25 PM
swissepi.bsky.social
#Cancer screening ▶️ a whole-population or a risk-based approach⁉️ If risk-based, can you convince the "low-risk" strata to do less⁉️ #prevention #PopHealthLab @thelancetph.bsky.social @drotte.medsky.social @cancerresearchuk.org @vickersbiostats.bsky.social
www.thelancet.com/journals/lan...
Screen no matter the risk?
The systematic review by Naomi Tan and colleagues published in The Lancet Public Health (February issue) on the perceptions of personalised risk-based cancer screening reflects a growing trend in the ...
www.thelancet.com
April 30, 2025 at 10:52 AM
swissepi.bsky.social
Easter 2025 in Lugano #Switzerland
April 24, 2025 at 8:33 AM
Reposted by Arnaud Chiolero MD PhD
alfredomorabia.bsky.social
#SoonInAJPH: "Building Community Research Capacity to Address Cardiovascular Health Disparities"

An adapted curriculum significantly boosts community research capacity and participation in cardiovascular health initiatives.
April 20, 2025 at 10:06 PM
swissepi.bsky.social
Three thinks to do in quantitative population health studies (1) set a theoretical estimand, (2) link it to an empirical estimand, and (3) learn from data. You want to know more⁉️ Read this fantastic review #PopHealthLab
bstewart.scholar.princeton.edu/publications...
What is Your Estimand? Defining the Target Quantity Connects Statistical Evidence to Theory | Brandon Stewart
bstewart.scholar.princeton.edu
April 22, 2025 at 4:53 PM