Otavio Ranzani
@otavioranzani.bsky.social
Group Leader - DataHealth Lab
Global Health | Epidemiology | RCTs
Critical Care, Infections, Climate Change
#DecolonizeGH 🇧🇷
At IR Sant Pau, Barcelona / USP, São Paulo
https://datahealthlab.org
Global Health | Epidemiology | RCTs
Critical Care, Infections, Climate Change
#DecolonizeGH 🇧🇷
At IR Sant Pau, Barcelona / USP, São Paulo
https://datahealthlab.org
Do you follow Oded?
You must. Real life academia...
You must. Real life academia...
When a collaborator ghosts the grant writing part and then materializes when the grant is accepted
January 15, 2026 at 5:15 PM
Do you follow Oded?
You must. Real life academia...
You must. Real life academia...
Reposted by Otavio Ranzani
You’re gonna love this one
'How to interpret hazard ratios', with @dominicmagirr.bsky.social and @timpmorris.bsky.social thestatsgeek.com/2026/01/15/h...
How to interpret hazard ratios
Survival analysis of time-to-event outcomes is very commonly performed using Cox’s famous proportional hazards model. The model estimates hazard ratios for the ‘effects’ of covari…
thestatsgeek.com
January 15, 2026 at 3:02 PM
You’re gonna love this one
Reposted by Otavio Ranzani
'How to interpret hazard ratios', with @dominicmagirr.bsky.social and @timpmorris.bsky.social thestatsgeek.com/2026/01/15/h...
How to interpret hazard ratios
Survival analysis of time-to-event outcomes is very commonly performed using Cox’s famous proportional hazards model. The model estimates hazard ratios for the ‘effects’ of covari…
thestatsgeek.com
January 15, 2026 at 10:52 AM
'How to interpret hazard ratios', with @dominicmagirr.bsky.social and @timpmorris.bsky.social thestatsgeek.com/2026/01/15/h...
🤣🤣🤣
January 9, 2026 at 10:48 PM
🤣🤣🤣
Reposted by Otavio Ranzani
New post on a topic you might have struggled with if you do simulation studies. For a given data-generating mechanism, you might wonder “What is the true value of my estimand?”
This post describes four ways to learn it.
tpmorris.substack.com/p/learning-t...
This post describes four ways to learn it.
tpmorris.substack.com/p/learning-t...
January 9, 2026 at 1:44 PM
New post on a topic you might have struggled with if you do simulation studies. For a given data-generating mechanism, you might wonder “What is the true value of my estimand?”
This post describes four ways to learn it.
tpmorris.substack.com/p/learning-t...
This post describes four ways to learn it.
tpmorris.substack.com/p/learning-t...
Reposted by Otavio Ranzani
After 5 years of data collection, our WARN-D machine learning competition to forecast depression onset is now LIVE! We hope many of you will participate—we have incredibly rich data.
If you share a single thing of my lab this year, please make it this competition.
eiko-fried.com/warn-d-machi...
If you share a single thing of my lab this year, please make it this competition.
eiko-fried.com/warn-d-machi...
WARN-D machine learning competition is live » Eiko Fried
If you share one single thing of our team in 2026—on social media or per email with your colleagues—please let it be this machine learning competition. It was half a decade of work to get here, especi...
eiko-fried.com
January 7, 2026 at 7:39 PM
After 5 years of data collection, our WARN-D machine learning competition to forecast depression onset is now LIVE! We hope many of you will participate—we have incredibly rich data.
If you share a single thing of my lab this year, please make it this competition.
eiko-fried.com/warn-d-machi...
If you share a single thing of my lab this year, please make it this competition.
eiko-fried.com/warn-d-machi...
Reposted by Otavio Ranzani
Inspired by this post by @rmkubinec.bsky.social: What are your favorite project management tools for academic research? I mainly want to keep track of tasks and discussions, and I don't necessarily need file storage. So something that's free would be preferable. www.robertkubinec.com/post/notion/
How to Use Notion for Academic Research – Homepage
I provide some advice for how to use Notion’s powerful management software for the unique challenges of academic research.
www.robertkubinec.com
January 5, 2026 at 2:48 PM
Inspired by this post by @rmkubinec.bsky.social: What are your favorite project management tools for academic research? I mainly want to keep track of tasks and discussions, and I don't necessarily need file storage. So something that's free would be preferable. www.robertkubinec.com/post/notion/
Reposted by Otavio Ranzani
A request for #rstats help.
Motivated by a real-world problem I'm facing, I wrote a package designed to help new users wean themselves off using rm(list=ls()), and nudge them in the direction of better practice.
I would sincerely appreciate feedback before I send it to CRAN
Motivated by a real-world problem I'm facing, I wrote a package designed to help new users wean themselves off using rm(list=ls()), and nudge them in the direction of better practice.
I would sincerely appreciate feedback before I send it to CRAN
Some thoughts on checking the R session – Notes from a data witch
More precisely, some thoughts on an R package I might send to CRAN, and I’d appreciate comments and criticism
blog.djnavarro.net
January 6, 2026 at 5:23 AM
A request for #rstats help.
Motivated by a real-world problem I'm facing, I wrote a package designed to help new users wean themselves off using rm(list=ls()), and nudge them in the direction of better practice.
I would sincerely appreciate feedback before I send it to CRAN
Motivated by a real-world problem I'm facing, I wrote a package designed to help new users wean themselves off using rm(list=ls()), and nudge them in the direction of better practice.
I would sincerely appreciate feedback before I send it to CRAN
Working with big spatial data sets in #rstats? You should try {duckspatial}. The dev version of #duckspatial (soon on CRAN) uses #duckdb to perform super fast and memory efficient spatial operations cidree.github.io/duckspatial/...
In a benchmark against, {sf}....
In a benchmark against, {sf}....
December 30, 2025 at 7:24 PM
Reposted by Otavio Ranzani
1) We’ve just published our review of the most interesting ME/CFS studies of 2025.
It feels like this year, we’ve made a significant step towards understanding the pathophysiology of ME/CFS.
A brief overview of the studies that caught our eye.
It feels like this year, we’ve made a significant step towards understanding the pathophysiology of ME/CFS.
A brief overview of the studies that caught our eye.
December 30, 2025 at 5:15 PM
Reposted by Otavio Ranzani
"The making of a statistician: Doug Altman" - just published in @bmj.com celebrating his 1 million citations and reflecting on his remarkable career and legacy. One of the most influential statisticians in modern medical research.
--> www.bmj.com/content/391/...
#BMJChristmas #methodologymatters
--> www.bmj.com/content/391/...
#BMJChristmas #methodologymatters
December 19, 2025 at 12:40 PM
"The making of a statistician: Doug Altman" - just published in @bmj.com celebrating his 1 million citations and reflecting on his remarkable career and legacy. One of the most influential statisticians in modern medical research.
--> www.bmj.com/content/391/...
#BMJChristmas #methodologymatters
--> www.bmj.com/content/391/...
#BMJChristmas #methodologymatters
Reposted by Otavio Ranzani
SOFA-2, validated in >3 million ICU patients, incorporates contemporary organ support and treatments, showing strong predictive validity for ICU mortality in diverse international settings.
ja.ma/4s1nZ35
ja.ma/4s1nZ35
December 17, 2025 at 12:00 PM
SOFA-2, validated in >3 million ICU patients, incorporates contemporary organ support and treatments, showing strong predictive validity for ICU mortality in diverse international settings.
ja.ma/4s1nZ35
ja.ma/4s1nZ35
😂🤣
December 15, 2025 at 7:29 PM
😂🤣
Reposted by Otavio Ranzani
“tuberculosis is not a relic of medical history. It remains the leading infectious cause of death worldwide”
www.nybooks.com/articles/202...
www.nybooks.com/articles/202...
The Plague That Won’t Die | Pria Anand
As my recent diagnosis shows, tuberculosis is not a relic of medical history. It remains the leading infectious cause of death worldwide—and America is hardly immune.
www.nybooks.com
December 5, 2025 at 11:22 PM
“tuberculosis is not a relic of medical history. It remains the leading infectious cause of death worldwide”
www.nybooks.com/articles/202...
www.nybooks.com/articles/202...
Haha.... then try to restore them...
December 3, 2025 at 10:24 PM
Haha.... then try to restore them...
Reposted by Otavio Ranzani
On International Day of People with #Disabilities, please note some disabilities are invisible
#Disability #invisibleillness #disabled #disabledpeople #IDPD #IDPD2025 #IDPD25
#Disability #invisibleillness #disabled #disabledpeople #IDPD #IDPD2025 #IDPD25
December 3, 2025 at 8:08 PM
On International Day of People with #Disabilities, please note some disabilities are invisible
#Disability #invisibleillness #disabled #disabledpeople #IDPD #IDPD2025 #IDPD25
#Disability #invisibleillness #disabled #disabledpeople #IDPD #IDPD2025 #IDPD25
Reposted by Otavio Ranzani
BEST ACTOR: Wagner Moura, The Secret Agent
December 2, 2025 at 5:20 PM
BEST ACTOR: Wagner Moura, The Secret Agent
Reposted by Otavio Ranzani
#rstats
It is with profound sadness I heard that my long-time friend and colleague, John Fox passed away this week.
He was the author of {car}, {effects}, {Rcmdr}, ... and numerous influential books. I will miss him greatly.
www.john-fox.ca
It is with profound sadness I heard that my long-time friend and colleague, John Fox passed away this week.
He was the author of {car}, {effects}, {Rcmdr}, ... and numerous influential books. I will miss him greatly.
www.john-fox.ca
John Fox: Books and Software
www.john-fox.ca
November 28, 2025 at 3:26 PM
#rstats
It is with profound sadness I heard that my long-time friend and colleague, John Fox passed away this week.
He was the author of {car}, {effects}, {Rcmdr}, ... and numerous influential books. I will miss him greatly.
www.john-fox.ca
It is with profound sadness I heard that my long-time friend and colleague, John Fox passed away this week.
He was the author of {car}, {effects}, {Rcmdr}, ... and numerous influential books. I will miss him greatly.
www.john-fox.ca
🚨 The Interim Report of the Global Climate and Health Summit is out!
Please, read, share and connect with us. The second phase is open
Honoured to be a Vice-Chair of this Summit
www.physoc.org/policy/clima...
Please, read, share and connect with us. The second phase is open
Honoured to be a Vice-Chair of this Summit
www.physoc.org/policy/clima...
Global Climate and Health Summit
The 2025 Global Climate and Health Summit placed physiology and partnerships at the heart of climate and health. Read more
www.physoc.org
November 9, 2025 at 9:47 PM
🚨 The Interim Report of the Global Climate and Health Summit is out!
Please, read, share and connect with us. The second phase is open
Honoured to be a Vice-Chair of this Summit
www.physoc.org/policy/clima...
Please, read, share and connect with us. The second phase is open
Honoured to be a Vice-Chair of this Summit
www.physoc.org/policy/clima...
Reposted by Otavio Ranzani
📚 Development and Validation of the Sequential Organ Failure Assessment (SOFA)-2 Score:
Presented today in the #LIVES2025 Hot Topics session.
🔗 Free to read online: ja.ma/4qzouAz
Presented today in the #LIVES2025 Hot Topics session.
🔗 Free to read online: ja.ma/4qzouAz
October 29, 2025 at 1:15 PM
📚 Development and Validation of the Sequential Organ Failure Assessment (SOFA)-2 Score:
Presented today in the #LIVES2025 Hot Topics session.
🔗 Free to read online: ja.ma/4qzouAz
Presented today in the #LIVES2025 Hot Topics session.
🔗 Free to read online: ja.ma/4qzouAz
Reposted by Otavio Ranzani
📚 Rationale and Methodological Approach Underlying the Development of the Sequential Organ Failure Assessment (SOFA)–2 Score: A Consensus Statement:
📣 Presented today in the #LIVES2025 Hot Topics session.
➡️ Free to read online:
ja.ma/42ZZZ5B
📣 Presented today in the #LIVES2025 Hot Topics session.
➡️ Free to read online:
ja.ma/42ZZZ5B
October 29, 2025 at 2:15 PM
📚 Rationale and Methodological Approach Underlying the Development of the Sequential Organ Failure Assessment (SOFA)–2 Score: A Consensus Statement:
📣 Presented today in the #LIVES2025 Hot Topics session.
➡️ Free to read online:
ja.ma/42ZZZ5B
📣 Presented today in the #LIVES2025 Hot Topics session.
➡️ Free to read online:
ja.ma/42ZZZ5B
Reposted by Otavio Ranzani
Development and Validation of the Sequential Organ Failure Assessment (SOFA)-2 Score.
Ranzani OT, Singer M, Salluh JIF, et al.
JAMA. Published online October 29, 2025. jamanetwork.com/journals/jam...
Ranzani OT, Singer M, Salluh JIF, et al.
JAMA. Published online October 29, 2025. jamanetwork.com/journals/jam...
Development and Validation of the SOFA-2 Score
This article describes the data-driven development and validation of the final SOFA-2 score.
jamanetwork.com
October 29, 2025 at 3:55 PM
Development and Validation of the Sequential Organ Failure Assessment (SOFA)-2 Score.
Ranzani OT, Singer M, Salluh JIF, et al.
JAMA. Published online October 29, 2025. jamanetwork.com/journals/jam...
Ranzani OT, Singer M, Salluh JIF, et al.
JAMA. Published online October 29, 2025. jamanetwork.com/journals/jam...
That single slide that make the difference 😅
When I delete slide 137 from my presentation because I might run out of time
October 30, 2025 at 8:01 AM
That single slide that make the difference 😅
Reposted by Otavio Ranzani
In this episode of the JAMA Author Interviews podcast, coauthor Mervyn Singer, MD, discusses the development and validation of the Sequential Organ Failure Assessment (SOFA)-2 score with JAMA Associate Editor Christopher Seymour, MD, MSc.
🎧 Listen now:
ja.ma/47wiUX0
🎧 Listen now:
ja.ma/47wiUX0
https://ja.ma/4oJNbst
JAMA Author Interviews
ja.ma
October 29, 2025 at 2:00 PM
In this episode of the JAMA Author Interviews podcast, coauthor Mervyn Singer, MD, discusses the development and validation of the Sequential Organ Failure Assessment (SOFA)-2 score with JAMA Associate Editor Christopher Seymour, MD, MSc.
🎧 Listen now:
ja.ma/47wiUX0
🎧 Listen now:
ja.ma/47wiUX0
Reposted by Otavio Ranzani
From @jamanetworkopen.com: The SOFA-2 score updates the 1996 Sequential Organ Failure Assessment, reflecting current definitions, variables, and thresholds to grade organ dysfunction in critically ill adults receiving intensive care.
#LIVES2025 @esicm.bsky.social
ja.ma/3JuguA7
#LIVES2025 @esicm.bsky.social
ja.ma/3JuguA7
October 29, 2025 at 1:15 PM
From @jamanetworkopen.com: The SOFA-2 score updates the 1996 Sequential Organ Failure Assessment, reflecting current definitions, variables, and thresholds to grade organ dysfunction in critically ill adults receiving intensive care.
#LIVES2025 @esicm.bsky.social
ja.ma/3JuguA7
#LIVES2025 @esicm.bsky.social
ja.ma/3JuguA7